diff --git a/src/actor.h b/src/actor.h
index 71295794af..7fb4e4cc8f 100644
--- a/src/actor.h
+++ b/src/actor.h
@@ -1141,7 +1141,7 @@ public:
 	uint8_t			WeaveIndexZ;
 	int				skillrespawncount;
 	int				TIDtoHate;			// TID of things to hate (0 if none)
-	FNameNoInit		Species;		// For monster families
+	FName		Species;		// For monster families
 	TObjPtr<AActor*>	alternative;	// (Un)Morphed actors stored here. Those with the MF_UNMORPHED flag are the originals.
 	TObjPtr<AActor*>	tracer;			// Thing being chased/attacked for tracers
 	TObjPtr<AActor*>	master;			// Thing which spawned this one (prevents mutual attacks)
@@ -1184,12 +1184,12 @@ public:
 	line_t			*BlockingLine;	// Line that blocked the last move
 
 	int PoisonDamage; // Damage received per tic from poison.
-	FNameNoInit PoisonDamageType; // Damage type dealt by poison.
+	FName PoisonDamageType; // Damage type dealt by poison.
 	int PoisonDuration; // Duration left for receiving poison damage.
 	int PoisonPeriod; // How often poison damage is applied. (Every X tics.)
 
 	int PoisonDamageReceived; // Damage received per tic from poison.
-	FNameNoInit PoisonDamageTypeReceived; // Damage type received by poison.
+	FName PoisonDamageTypeReceived; // Damage type received by poison.
 	int PoisonDurationReceived; // Duration left for receiving poison damage.
 	int PoisonPeriodReceived; // How often poison damage is applied. (Every X tics.)
 	TObjPtr<AActor*> Poisoner; // Last source of received poison damage.
@@ -1229,13 +1229,13 @@ public:
 	int32_t Mass;
 	int16_t PainChance;
 	int PainThreshold;
-	FNameNoInit DamageType;
-	FNameNoInit DamageTypeReceived;
+	FName DamageType;
+	FName DamageTypeReceived;
 	double DamageFactor;
 	double DamageMultiply;
 
-	FNameNoInit PainType;
-	FNameNoInit DeathType;
+	FName PainType;
+	FName DeathType;
 	PClassActor *TeleFogSourceType;
 	PClassActor *TeleFogDestType;
 	int RipperLevel;
diff --git a/src/c_console.cpp b/src/c_console.cpp
index da38a25e92..bc552c3b8e 100644
--- a/src/c_console.cpp
+++ b/src/c_console.cpp
@@ -1807,7 +1807,7 @@ struct TabData
 	FName TabName;
 
 	TabData()
-	: UseCount(0)
+	: UseCount(0), TabName(NAME_None)
 	{
 	}
 
diff --git a/src/d_netinfo.cpp b/src/d_netinfo.cpp
index 2bc59fe719..ef68ebf4ee 100644
--- a/src/d_netinfo.cpp
+++ b/src/d_netinfo.cpp
@@ -756,7 +756,7 @@ void D_ReadUserInfoStrings (int pnum, uint8_t **stream, bool update)
 	const char *breakpt;
 	FString value;
 	bool compact;
-	FName keyname;
+	FName keyname = NAME_None;
 	unsigned int infotype = 0;
 
 	if (*ptr++ != '\\')
@@ -925,8 +925,6 @@ void WriteUserInfo(FSerializer &arc, userinfo_t &info)
 
 void ReadUserInfo(FSerializer &arc, userinfo_t &info, FString &skin)
 {
-	FName name;
-	FBaseCVar **cvar;
 	UCVarValue val;
 	const char *key;
 	const char *str;
@@ -938,8 +936,8 @@ void ReadUserInfo(FSerializer &arc, userinfo_t &info, FString &skin)
 		while ((key = arc.GetKey()))
 		{
 			arc.StringPtr(nullptr, str);
-			name = key;
-			cvar = info.CheckKey(name);
+			FName name = key;
+			FBaseCVar **cvar = info.CheckKey(name);
 			if (cvar != NULL && *cvar != NULL)
 			{
 				switch (name)
diff --git a/src/d_player.h b/src/d_player.h
index 189b0973b8..1ae74de329 100644
--- a/src/d_player.h
+++ b/src/d_player.h
@@ -141,7 +141,7 @@ public:
 	double		SideMove1, SideMove2;
 	FTextureID	ScoreIcon;
 	int			SpawnMask;
-	FNameNoInit	MorphWeapon;
+	FName	MorphWeapon;
 	double		AttackZOffset;			// attack height, relative to player center
 	double		UseRange;				// [NS] Distance at which player can +use
 	double		AirCapacity;			// Multiplier for air supply underwater.
@@ -155,10 +155,10 @@ public:
 	double		ViewBob;
 
 	// Former class properties that were moved into the object to get rid of the meta class.
-	FNameNoInit SoundClass;		// Sound class
-	FNameNoInit Face;			// Doom status bar face (when used)
-	FNameNoInit Portrait;
-	FNameNoInit Slot[10];
+	FName SoundClass;		// Sound class
+	FName Face;			// Doom status bar face (when used)
+	FName Portrait;
+	FName Slot[10];
 	double HexenArmor[5];
 	uint8_t ColorRangeStart;	// Skin color range
 	uint8_t ColorRangeEnd;
@@ -372,7 +372,7 @@ void WriteUserInfo(FSerializer &arc, userinfo_t &info);
 class player_t
 {
 public:
-	player_t();
+	player_t() = default;
 	~player_t();
 	player_t &operator= (const player_t &p);
 
@@ -384,117 +384,117 @@ public:
 	void SetLogText (const char *text);
 	void SendPitchLimits() const;
 
-	APlayerPawn	*mo;
-	uint8_t		playerstate;
-	ticcmd_t	cmd;
+	APlayerPawn	*mo = nullptr;
+	uint8_t		playerstate = 0;
+	ticcmd_t	cmd = {};
 	usercmd_t	original_cmd;
 	uint32_t		original_oldbuttons;
 
 	userinfo_t	userinfo;				// [RH] who is this?
 	
-	PClassActor *cls;				// class of associated PlayerPawn
+	PClassActor *cls = nullptr;				// class of associated PlayerPawn
 
-	float		DesiredFOV;				// desired field of vision
-	float		FOV;					// current field of vision
-	double		viewz;					// focal origin above r.z
-	double		viewheight;				// base height above floor for viewz
-	double		deltaviewheight;		// squat speed.
-	double		bob;					// bounded/scaled total velocity
+	float		DesiredFOV = 0;				// desired field of vision
+	float		FOV = 0;					// current field of vision
+	double		viewz = 0;					// focal origin above r.z
+	double		viewheight = 0;				// base height above floor for viewz
+	double		deltaviewheight = 0;		// squat speed.
+	double		bob = 0;					// bounded/scaled total velocity
 
 	// killough 10/98: used for realistic bobbing (i.e. not simply overall speed)
 	// mo->velx and mo->vely represent true velocity experienced by player.
 	// This only represents the thrust that the player applies himself.
 	// This avoids anomalies with such things as Boom ice and conveyors.
-	DVector2 Vel;
+	DVector2 Vel = { 0,0 };
 
-	bool		centering;
-	uint8_t		turnticks;
+	bool		centering = false;
+	uint8_t		turnticks = 0;
 
 
-	bool		attackdown;
-	bool		usedown;
-	uint32_t		oldbuttons;
-	int			health;					// only used between levels, mo->health
+	bool		attackdown = false;
+	bool		usedown = false;
+	uint32_t	oldbuttons = false;
+	int			health = 0;					// only used between levels, mo->health
 										// is used during levels
 
-	int			inventorytics;
-	uint8_t		CurrentPlayerClass;		// class # for this player instance
+	int			inventorytics = 0;
+	uint8_t		CurrentPlayerClass = 0;		// class # for this player instance
 
-	int			frags[MAXPLAYERS];		// kills of other players
-	int			fragcount;				// [RH] Cumulative frags for this player
-	int			lastkilltime;			// [RH] For multikills
-	uint8_t		multicount;
-	uint8_t		spreecount;				// [RH] Keep track of killing sprees
-	uint16_t		WeaponState;
+	int			frags[MAXPLAYERS] = {};		// kills of other players
+	int			fragcount = 0;				// [RH] Cumulative frags for this player
+	int			lastkilltime = 0;			// [RH] For multikills
+	uint8_t		multicount = 0;
+	uint8_t		spreecount = 0;				// [RH] Keep track of killing sprees
+	uint16_t	WeaponState = 0;
 
-	AWeapon	   *ReadyWeapon;
-	AWeapon	   *PendingWeapon;			// WP_NOCHANGE if not changing
-	TObjPtr<DPSprite*> psprites; // view sprites (gun, etc)
+	AWeapon	   *ReadyWeapon = nullptr;
+	AWeapon	   *PendingWeapon = nullptr;			// WP_NOCHANGE if not changing
+	TObjPtr<DPSprite*> psprites = nullptr; // view sprites (gun, etc)
 
-	int			cheats;					// bit flags
-	int			timefreezer;			// Player has an active time freezer
-	short		refire;					// refired shots are less accurate
-	short		inconsistant;
-	bool		waiting;
-	int			killcount, itemcount, secretcount;		// for intermission
-	int			damagecount, bonuscount;// for screen flashing
-	int			hazardcount;			// for delayed Strife damage
-	int			hazardinterval;			// Frequency of damage infliction
-	FName		hazardtype;				// Damage type of last hazardous damage encounter.
-	int			poisoncount;			// screen flash for poison damage
-	FName		poisontype;				// type of poison damage to apply
-	FName		poisonpaintype;			// type of Pain state to enter for poison damage
-	TObjPtr<AActor*>		poisoner;		// NULL for non-player actors
-	TObjPtr<AActor*>		attacker;		// who did damage (NULL for floors)
-	int			extralight;				// so gun flashes light up areas
-	short		fixedcolormap;			// can be set to REDCOLORMAP, etc.
-	short		fixedlightlevel;
-	int			morphTics;				// player is a chicken/pig if > 0
-	PClassActor *MorphedPlayerClass;		// [MH] (for SBARINFO) class # for this player instance when morphed
-	int			MorphStyle;				// which effects to apply for this player instance when morphed
-	PClassActor *MorphExitFlash;		// flash to apply when demorphing (cache of value given to P_MorphPlayer)
-	TObjPtr<AWeapon*>	PremorphWeapon;		// ready weapon before morphing
-	int			chickenPeck;			// chicken peck countdown
-	int			jumpTics;				// delay the next jump for a moment
-	bool		onground;				// Identifies if this player is on the ground or other object
+	int			cheats = 0;					// bit flags
+	int			timefreezer = 0;			// Player has an active time freezer
+	short		refire = 0;					// refired shots are less accurate
+	short		inconsistant = 0;
+	bool		waiting = 0;
+	int			killcount = 0, itemcount = 0, secretcount = 0;		// for intermission
+	int			damagecount = 0, bonuscount = 0;// for screen flashing
+	int			hazardcount = 0;			// for delayed Strife damage
+	int			hazardinterval = 0;			// Frequency of damage infliction
+	FName		hazardtype = NAME_None;				// Damage type of last hazardous damage encounter.
+	int			poisoncount = 0;			// screen flash for poison damage
+	FName		poisontype = NAME_None;				// type of poison damage to apply
+	FName		poisonpaintype = NAME_None;			// type of Pain state to enter for poison damage
+	TObjPtr<AActor*>		poisoner = nullptr;		// NULL for non-player actors
+	TObjPtr<AActor*>		attacker = nullptr;		// who did damage (NULL for floors)
+	int			extralight = 0;				// so gun flashes light up areas
+	short		fixedcolormap = 0;			// can be set to REDCOLORMAP, etc.
+	short		fixedlightlevel = 0;
+	int			morphTics = 0;				// player is a chicken/pig if > 0
+	PClassActor *MorphedPlayerClass = nullptr;		// [MH] (for SBARINFO) class # for this player instance when morphed
+	int			MorphStyle = 0;				// which effects to apply for this player instance when morphed
+	PClassActor *MorphExitFlash = nullptr;		// flash to apply when demorphing (cache of value given to P_MorphPlayer)
+	TObjPtr<AWeapon*>	PremorphWeapon = nullptr;		// ready weapon before morphing
+	int			chickenPeck = 0;			// chicken peck countdown
+	int			jumpTics = 0;				// delay the next jump for a moment
+	bool		onground = 0;				// Identifies if this player is on the ground or other object
 
-	int			respawn_time;			// [RH] delay respawning until this tic
-	TObjPtr<AActor*>		camera;			// [RH] Whose eyes this player sees through
+	int			respawn_time = 0;			// [RH] delay respawning until this tic
+	TObjPtr<AActor*>	camera = nullptr;			// [RH] Whose eyes this player sees through
 
-	int			air_finished;			// [RH] Time when you start drowning
+	int			air_finished = 0;			// [RH] Time when you start drowning
 
-	FName		LastDamageType;			// [RH] For damage-specific pain and death sounds
+	FName		LastDamageType = NAME_None;			// [RH] For damage-specific pain and death sounds
 
-	TObjPtr<AActor*> MUSINFOactor;		// For MUSINFO purposes
-	int8_t		MUSINFOtics;
+	TObjPtr<AActor*> MUSINFOactor = nullptr;		// For MUSINFO purposes
+	int8_t		MUSINFOtics = 0;
 
-	bool		settings_controller;	// Player can control game settings.
-	int8_t		crouching;
-	int8_t		crouchdir;
+	bool		settings_controller = false;	// Player can control game settings.
+	int8_t		crouching = 0;
+	int8_t		crouchdir = 0;
 
 	//Added by MC:
-	TObjPtr<DBot*> Bot;
+	TObjPtr<DBot*> Bot = nullptr;
 
-	float		BlendR;		// [RH] Final blending values
-	float		BlendG;
-	float		BlendB;
-	float		BlendA;
+	float		BlendR = 0;		// [RH] Final blending values
+	float		BlendG = 0;
+	float		BlendB = 0;
+	float		BlendA = 0;
 
 	FString		LogText;	// [RH] Log for Strife
 
-	DAngle			MinPitch;	// Viewpitch limits (negative is up, positive is down)
-	DAngle			MaxPitch;
+	DAngle			MinPitch = 0.;	// Viewpitch limits (negative is up, positive is down)
+	DAngle			MaxPitch = 0.;
 
-	double crouchfactor;
-	double crouchoffset;
-	double crouchviewdelta;
+	double crouchfactor = 0;
+	double crouchoffset = 0;
+	double crouchviewdelta = 0;
 
 	FWeaponSlots weapons;
 
 	// [CW] I moved these here for multiplayer conversation support.
-	TObjPtr<AActor*> ConversationNPC, ConversationPC;
-	DAngle ConversationNPCAngle;
-	bool ConversationFaceTalker;
+	TObjPtr<AActor*> ConversationNPC = nullptr, ConversationPC = nullptr;
+	DAngle ConversationNPCAngle = 0.;
+	bool ConversationFaceTalker = false;
 
 	double GetDeltaViewHeight() const
 	{
diff --git a/src/decallib.cpp b/src/decallib.cpp
index 3b5daef5a0..71ac662d3d 100644
--- a/src/decallib.cpp
+++ b/src/decallib.cpp
@@ -1037,8 +1037,8 @@ FDecalLib::FTranslation *FDecalLib::GenerateTranslation (uint32_t start, uint32_
 }
 
 FDecalBase::FDecalBase ()
+	: Name(NAME_None)
 {
-	Name = NAME_None;
 }
 
 FDecalBase::~FDecalBase ()
@@ -1152,8 +1152,8 @@ const FDecalTemplate *FDecalGroup::GetDecal () const
 }
 
 FDecalAnimator::FDecalAnimator (const char *name)
+	: Name(name)
 {
-	Name = name;
 }
 
 FDecalAnimator::~FDecalAnimator ()
diff --git a/src/dobjtype.h b/src/dobjtype.h
index 212174005f..3445e02baa 100644
--- a/src/dobjtype.h
+++ b/src/dobjtype.h
@@ -58,8 +58,8 @@ public:
 	uint8_t				*Meta = nullptr;			// Per-class static script data
 	unsigned			 Size = sizeof(DObject);
 	unsigned			 MetaSize = 0;
-	FName				 TypeName;
-	FName				 SourceLumpName;
+	FName				 TypeName = NAME_None;
+	FName				 SourceLumpName = NAME_None;
 	bool				 bRuntimeClass = false;	// class was defined at run-time, not compile-time
 	bool				 bDecorateClass = false;	// may be subject to some idiosyncracies due to DECORATE backwards compatibility
 	bool				 bAbstract = false;
diff --git a/src/doomdata.h b/src/doomdata.h
index 38a65ca503..eb54f5f32c 100644
--- a/src/doomdata.h
+++ b/src/doomdata.h
@@ -373,7 +373,7 @@ struct FMapThing
 	uint32_t		RenderStyle;
 	int			FloatbobPhase;
 	int			friendlyseeblocks;
-	FNameNoInit arg0str;
+	FName arg0str;
 };
 
 
diff --git a/src/edata.cpp b/src/edata.cpp
index 15f3241cf0..ee60356a75 100644
--- a/src/edata.cpp
+++ b/src/edata.cpp
@@ -120,7 +120,7 @@ struct EDSector
 
 	int damageamount;
 	int damageinterval;
-	FNameNoInit damagetype;
+	FName damagetype;
 	uint8_t leaky;
 	uint8_t leakyadd;
 	uint8_t leakyremove;
diff --git a/src/events.h b/src/events.h
index 1fbf271dc1..54d9755667 100755
--- a/src/events.h
+++ b/src/events.h
@@ -204,7 +204,7 @@ struct FWorldEvent
 	AActor* Inflictor = nullptr; // can be null - for damagemobj
 	AActor* DamageSource = nullptr; // can be null
 	int Damage = 0;
-	FName DamageType;
+	FName DamageType = NAME_None;
 	int DamageFlags = 0;
 	DAngle DamageAngle;
 	// for line(pre)activated
diff --git a/src/g_level.h b/src/g_level.h
index b717bdbcfe..98bdb4229e 100644
--- a/src/g_level.h
+++ b/src/g_level.h
@@ -264,9 +264,8 @@ struct level_info_t;
 
 struct FOptionalMapinfoData
 {
-	FOptionalMapinfoData *Next;
-	FName identifier;
-	FOptionalMapinfoData() { Next = NULL; identifier = NAME_None; }
+	FOptionalMapinfoData *Next = nullptr;
+	FName identifier = NAME_None;
 	virtual ~FOptionalMapinfoData() {}
 	virtual FOptionalMapinfoData *Clone() const = 0;
 };
@@ -572,7 +571,7 @@ typedef TMap<FName, FName> SkillActorReplacement;
 
 struct FSkillInfo
 {
-	FName Name;
+	FName Name = NAME_None;
 	double AmmoFactor, DoubleAmmoFactor, DropAmmoFactor;
 	double DamageFactor;
 	double ArmorFactor;
diff --git a/src/g_mapinfo.cpp b/src/g_mapinfo.cpp
index 9eb80ae09a..d621b231c3 100644
--- a/src/g_mapinfo.cpp
+++ b/src/g_mapinfo.cpp
@@ -259,10 +259,13 @@ void level_info_t::Reset()
 	compatflags = compatflags2 = 0;
 	compatmask = compatmask2 = 0;
 	Translator = "";
-	RedirectType = 0;
+	RedirectType = NAME_None;
 	RedirectMapName = "";
 	EnterPic = "";
 	ExitPic = "";
+	Intermission = NAME_None;
+	deathsequence = NAME_None;
+	slideshow = NAME_None;
 	InterMusic = "";
 	intermusicorder = 0;
 	SoundInfo = "";
diff --git a/src/g_statusbar/sbar.h b/src/g_statusbar/sbar.h
index a98111a29a..968c917602 100644
--- a/src/g_statusbar/sbar.h
+++ b/src/g_statusbar/sbar.h
@@ -252,7 +252,7 @@ struct FMugShotState
 	unsigned int Position;
 	int Time;
 	int Random;
-	FName State;
+	FName State = NAME_None;
 	TArray<FMugShotFrame> Frames;
 
 	FMugShotState(FName name);
diff --git a/src/g_statusbar/sbarinfo_commands.cpp b/src/g_statusbar/sbarinfo_commands.cpp
index 199a0fe9d8..15b0663aff 100644
--- a/src/g_statusbar/sbarinfo_commands.cpp
+++ b/src/g_statusbar/sbarinfo_commands.cpp
@@ -667,7 +667,7 @@ class CommandDrawSwitchableImage : public CommandDrawImage
 		Operator	conditionalOperator[2];
 		FString		inventoryItem[2];
 		int			armorType[2];
-		FName		keySpecies[2];
+		FName		keySpecies[2] = { NAME_None, NAME_None };
 };
 
 ////////////////////////////////////////////////////////////////////////////////
diff --git a/src/g_statusbar/shared_sbar.cpp b/src/g_statusbar/shared_sbar.cpp
index 7236bc39b9..6be4abf9f7 100644
--- a/src/g_statusbar/shared_sbar.cpp
+++ b/src/g_statusbar/shared_sbar.cpp
@@ -319,7 +319,7 @@ void ST_CreateStatusBar(bool bTitleLevel)
 	}
 	if (StatusBar == nullptr)
 	{
-		FName defname;
+		FName defname = NAME_None;
 
 		if (gameinfo.gametype & GAME_DoomChex) defname = "DoomStatusBar";
 		else if (gameinfo.gametype == GAME_Heretic) defname = "HereticStatusBar";
diff --git a/src/info.cpp b/src/info.cpp
index f31abf9534..0ff3928cd6 100644
--- a/src/info.cpp
+++ b/src/info.cpp
@@ -408,7 +408,7 @@ void PClassActor::RegisterIDs()
 
 PClassActor *PClassActor::GetReplacement(bool lookskill)
 {
-	FName skillrepname;
+	FName skillrepname = NAME_None;
 	
 	if (lookskill && AllSkills.Size() > (unsigned)gameskill)
 	{
@@ -470,7 +470,7 @@ DEFINE_ACTION_FUNCTION(AActor, GetReplacement)
 
 PClassActor *PClassActor::GetReplacee(bool lookskill)
 {
-	FName skillrepname;
+	FName skillrepname = NAME_None;
 	
 	if (lookskill && AllSkills.Size() > (unsigned)gameskill)
 	{
diff --git a/src/intermission/intermission.h b/src/intermission/intermission.h
index a73d18a128..f159ebb7ab 100644
--- a/src/intermission/intermission.h
+++ b/src/intermission/intermission.h
@@ -122,7 +122,7 @@ struct FIntermissionActionCast : public FIntermissionAction
 	typedef FIntermissionAction Super;
 
 	FString mName;
-	FName mCastClass;
+	FName mCastClass = NAME_None;
 	TArray<FCastSound> mCastSounds;
 
 	FIntermissionActionCast();
@@ -144,7 +144,7 @@ struct FIntermissionActionScroller : public FIntermissionAction
 
 struct FIntermissionDescriptor
 {
-	FName mLink;
+	FName mLink = NAME_None;
 	TDeletingArray<FIntermissionAction *> mActions;
 };
 
diff --git a/src/menu/menu.h b/src/menu/menu.h
index 2091bd823d..904ea0080d 100644
--- a/src/menu/menu.h
+++ b/src/menu/menu.h
@@ -121,7 +121,7 @@ class DMenuDescriptor : public DObject
 {
 	DECLARE_CLASS(DMenuDescriptor, DObject)
 public:
-	FName mMenuName;
+	FName mMenuName = NAME_None;
 	FString mNetgameMessage;
 	PClass *mClass = nullptr;
 	bool mProtected = false;
@@ -287,7 +287,7 @@ class DMenuItemBase : public DObject
 	DECLARE_CLASS(DMenuItemBase, DObject)
 public:
 	double mXpos, mYpos;
-	FNameNoInit mAction;
+	FName mAction;
 	bool mEnabled;
 
 	bool Activate();
diff --git a/src/menu/menudef.cpp b/src/menu/menudef.cpp
index 5cbc885499..19217e5277 100644
--- a/src/menu/menudef.cpp
+++ b/src/menu/menudef.cpp
@@ -657,11 +657,9 @@ static void ParseListMenu(FScanner &sc)
 
 static void ParseOptionValue(FScanner &sc)
 {
-	FName optname;
-
 	FOptionValues *val = new FOptionValues;
 	sc.MustGetString();
-	optname = sc.String;
+	FName optname = sc.String;
 	sc.MustGetStringName("{");
 	while (!sc.CheckString("}"))
 	{
@@ -689,11 +687,9 @@ static void ParseOptionValue(FScanner &sc)
 
 static void ParseOptionString(FScanner &sc)
 {
-	FName optname;
-
 	FOptionValues *val = new FOptionValues;
 	sc.MustGetString();
-	optname = sc.String;
+	FName optname = sc.String;
 	sc.MustGetStringName("{");
 	while (!sc.CheckString("}"))
 	{
diff --git a/src/name.h b/src/name.h
index 521a8e697d..575e42d065 100644
--- a/src/name.h
+++ b/src/name.h
@@ -46,7 +46,7 @@ class FString;
 class FName
 {
 public:
-	FName () : Index(0) {}
+	FName() = default;// : Index(0) {}
 	FName (const char *text) { Index = NameData.FindName (text, false); }
 	FName (const char *text, bool noCreate) { Index = NameData.FindName (text, noCreate); }
 	FName (const char *text, size_t textlen, bool noCreate) { Index = NameData.FindName (text, textlen, noCreate); }
@@ -120,20 +120,6 @@ protected:
 	};
 
 	static NameManager NameData;
-
-	enum EDummy { NoInit };
-	FName (EDummy) {}
-};
-
-class FNameNoInit : public FName
-{
-public:
-	FNameNoInit() : FName(NoInit) {}
-
-	FName &operator = (const char *text) { Index = NameData.FindName (text, false); return *this; }
-	FName &operator = (const FString &text);
-	FName &operator = (const FName &other) { Index = int(other); return *this; }
-	FName &operator = (ENamedName index) { Index = index; return *this; }
 };
 
 #endif
diff --git a/src/p_conversation.h b/src/p_conversation.h
index bc2e56be15..2a516e06eb 100644
--- a/src/p_conversation.h
+++ b/src/p_conversation.h
@@ -33,7 +33,7 @@ struct FStrifeDialogueNode
 	FString Goodbye; // must init to null for binary scripts to work as intended
 
 	FStrifeDialogueReply *Children = nullptr;
-	FName MenuClassName;
+	FName MenuClassName = NAME_None;
 	FString UserData;
 };
 
diff --git a/src/p_interaction.cpp b/src/p_interaction.cpp
index 159ec53dd1..ab7dce4961 100644
--- a/src/p_interaction.cpp
+++ b/src/p_interaction.cpp
@@ -182,25 +182,22 @@ void SexMessage (const char *from, char *to, int gender, const char *victim, con
 //
 void ClientObituary (AActor *self, AActor *inflictor, AActor *attacker, int dmgflags, FName MeansOfDeath)
 {
-	FName mod;
 	FString ret;
-	const char *message;
-	const char *messagename;
 	char gendermessage[1024];
 
 	// No obituaries for non-players, voodoo dolls or when not wanted
-	if (self->player == NULL || self->player->mo != self || !show_obituaries)
+	if (self->player == nullptr || self->player->mo != self || !show_obituaries)
 		return;
 
 	// Treat voodoo dolls as unknown deaths
 	if (inflictor && inflictor->player && inflictor->player->mo != inflictor)
 		MeansOfDeath = NAME_None;
 
-	mod = MeansOfDeath;
-	message = NULL;
-	messagename = NULL;
+	FName mod = MeansOfDeath;
+	const char *message = nullptr;
+	const char *messagename = nullptr;
 
-	if (attacker == NULL || attacker->player != NULL)
+	if (attacker == nullptr || attacker->player != nullptr)
 	{
 		if (mod == NAME_Telefrag)
 		{
diff --git a/src/p_map.cpp b/src/p_map.cpp
index 9ca345d9b1..dacc7ae8bc 100644
--- a/src/p_map.cpp
+++ b/src/p_map.cpp
@@ -4484,7 +4484,7 @@ DEFINE_ACTION_FUNCTION(AActor, AimLineAttack)
 struct Origin
 {
 	AActor *Caller;
-	FNameNoInit PuffSpecies;
+	FName PuffSpecies;
 	bool hitGhosts;
 	bool MThruSpecies;
 	bool ThruSpecies;
@@ -5092,6 +5092,7 @@ AActor *P_LinePickActor(AActor *t1, DAngle angle, double distance, DAngle pitch,
 	TData.MThruSpecies = false;
 	TData.ThruActors = false;
 	TData.ThruSpecies = false;
+	TData.PuffSpecies = NAME_None;
 	
 	if (Trace(t1->PosAtZ(shootz), t1->Sector, direction, distance,
 		actorMask, wallMask, t1, trace, TRACE_NoSky | TRACE_PortalRestrict, CheckForActor, &TData))
@@ -5309,7 +5310,7 @@ struct RailData
 	AActor *Caller;
 	TArray<SRailHit> RailHits;
 	TArray<SPortalHit> PortalHits;
-	FNameNoInit PuffSpecies;
+	FName PuffSpecies;
 	bool StopAtOne;
 	bool StopAtInvul;
 	bool ThruGhosts;
diff --git a/src/p_mobj.cpp b/src/p_mobj.cpp
index 2f8b89a843..16396f29c0 100644
--- a/src/p_mobj.cpp
+++ b/src/p_mobj.cpp
@@ -2171,13 +2171,9 @@ bool AActor::FloorBounceMissile (secplane_t &plane)
 	// Set bounce state
 	if (BounceFlags & BOUNCE_UseBounceState)
 	{
-		FName names[2];
-		FState *bouncestate;
-
-		names[0] = NAME_Bounce;
-		names[1] = plane.fC() < 0 ? NAME_Ceiling : NAME_Floor;
-		bouncestate = FindState(2, names);
-		if (bouncestate != NULL)
+		FName names[2] = { NAME_Bounce, plane.fC() < 0 ? NAME_Ceiling : NAME_Floor };
+		FState *bouncestate = FindState(2, names);
+		if (bouncestate != nullptr)
 		{
 			SetState(bouncestate);
 		}
diff --git a/src/p_states.cpp b/src/p_states.cpp
index 8b59224701..addf8ad1dd 100644
--- a/src/p_states.cpp
+++ b/src/p_states.cpp
@@ -196,7 +196,7 @@ bool AActor::HasSpecialDeathStates () const
 TArray<FName> &MakeStateNameList(const char * fname)
 {
 	static TArray<FName> namelist(3);
-	FName firstpart, secondpart;
+	FName firstpart = NAME_None, secondpart = NAME_None;
 	char *c;
 
 	// Handle the old names for the existing death states
@@ -256,21 +256,19 @@ TArray<FName> &MakeStateNameList(const char * fname)
 FState *PClassActor::FindState(int numnames, FName *names, bool exact) const
 {
 	FStateLabels *labels = GetStateLabels();
-	FState *best = NULL;
+	FState *best = nullptr;
 
-	if (labels != NULL)
+	if (labels != nullptr)
 	{
 		int count = 0;
-		FStateLabel *slabel = NULL;
-		FName label;
 
 		// Find the best-matching label for this class.
-		while (labels != NULL && count < numnames)
+		while (labels != nullptr && count < numnames)
 		{
-			label = *names++;
-			slabel = labels->FindLabel(label);
+			FName label = *names++;
+			FStateLabel *slabel = labels->FindLabel(label);
 
-			if (slabel != NULL)
+			if (slabel != nullptr)
 			{
 				count++;
 				labels = slabel->Children;
@@ -283,7 +281,7 @@ FState *PClassActor::FindState(int numnames, FName *names, bool exact) const
 		}
 		if (count < numnames && exact)
 		{
-			return NULL;
+			return nullptr;
 		}
 	}
 	return best;
@@ -411,7 +409,7 @@ FStateDefine *FStateDefinitions::FindStateLabelInList(TArray<FStateDefine> & lis
 	{
 		FStateDefine def;
 		def.Label = name;
-		def.State = NULL;
+		def.State = nullptr;
 		def.DefineFlags = SDF_NEXT;
 		return &list[list.Push(def)];
 	}
diff --git a/src/p_terrain.cpp b/src/p_terrain.cpp
index 8459ed27ae..73756ec57b 100644
--- a/src/p_terrain.cpp
+++ b/src/p_terrain.cpp
@@ -375,10 +375,9 @@ void ParseSplash (FScanner &sc)
 	int splashnum;
 	FSplashDef *splashdef;
 	bool isnew = false;
-	FName name;
 
 	sc.MustGetString ();
-	name = sc.String;
+	FName name = sc.String;
 	splashnum = (int)FindSplash (name);
 	if (splashnum < 0)
 	{
@@ -422,10 +421,9 @@ void ParseSplash (FScanner &sc)
 void ParseTerrain (FScanner &sc)
 {
 	int terrainnum;
-	FName name;
 
 	sc.MustGetString ();
-	name = sc.String;
+	FName name = sc.String;
 	terrainnum = (int)P_FindTerrain (name);
 	if (terrainnum < 0)
 	{
diff --git a/src/p_udmf.cpp b/src/p_udmf.cpp
index 6acf9e37c5..a2b45fe7f6 100644
--- a/src/p_udmf.cpp
+++ b/src/p_udmf.cpp
@@ -462,7 +462,7 @@ class UDMFParser : public UDMFParserBase
 	TArray<vertex_t> ParsedVertices;
 	TArray<UDMFScroll> UDMFScrollers;
 
-	FDynamicColormap	*fogMap, *normMap;
+	FDynamicColormap	*fogMap = nullptr, *normMap = nullptr;
 	FMissingTextureTracker &missingTex;
 
 public:
@@ -470,7 +470,6 @@ public:
 		: missingTex(missing)
 	{
 		linemap.Clear();
-		fogMap = normMap = NULL;
 	}
 
   void ReadUserKey(FUDMFKey &ukey) {
@@ -1357,11 +1356,11 @@ public:
 		// Brand new UDMF scroller properties
 		double scroll_ceil_x = 0;
 		double scroll_ceil_y = 0;
-		FName scroll_ceil_type;
+		FName scroll_ceil_type = NAME_None;
 
 		double scroll_floor_x = 0;
 		double scroll_floor_y = 0;
-		FName scroll_floor_type;
+		FName scroll_floor_type = NAME_None;
 
 
 		memset(sec, 0, sizeof(*sec));
diff --git a/src/p_udmf.h b/src/p_udmf.h
index dbc7eed54f..8e09017558 100644
--- a/src/p_udmf.h
+++ b/src/p_udmf.h
@@ -8,7 +8,7 @@ class UDMFParserBase
 {
 protected:
 	FScanner sc;
-	FName namespc;
+	FName namespc = NAME_None;
 	int namespace_bits;
 	FString parsedString;
 	bool BadCoordinates = false;
diff --git a/src/p_usdf.cpp b/src/p_usdf.cpp
index cb375816ff..4838d4b8d7 100644
--- a/src/p_usdf.cpp
+++ b/src/p_usdf.cpp
@@ -400,9 +400,9 @@ class USDFParser : public UDMFParserBase
 
 	bool ParseConversation()
 	{
-		PClassActor *type = NULL;
+		PClassActor *type = nullptr;
 		int dlgid = -1;
-		FName clsid;
+		FName clsid = NAME_None;
 		unsigned int startpos = StrifeDialogues.Size();
 
 		while (!sc.CheckToken('}'))
diff --git a/src/p_user.cpp b/src/p_user.cpp
index a4f5ec439d..29efe9001a 100644
--- a/src/p_user.cpp
+++ b/src/p_user.cpp
@@ -301,82 +301,6 @@ CCMD (playerclasses)
 // 16 pixels of bob
 #define MAXBOB			16.
 
-// The player_t constructor. Since LogText is not a POD, we cannot just
-// memset it all to 0.
-player_t::player_t()
-: mo(0),
-  playerstate(0),
-  cls(0),
-  DesiredFOV(0),
-  FOV(0),
-  viewz(0),
-  viewheight(0),
-  deltaviewheight(0),
-  bob(0),
-  Vel(0, 0),
-  centering(0),
-  turnticks(0),
-  attackdown(0),
-  usedown(0),
-  oldbuttons(0),
-  health(0),
-  inventorytics(0),
-  CurrentPlayerClass(0),
-  fragcount(0),
-  lastkilltime(0),
-  multicount(0),
-  spreecount(0),
-  WeaponState(0),
-  ReadyWeapon(0),
-  PendingWeapon(0),
-  psprites(0),
-  cheats(0),
-  timefreezer(0),
-  refire(0),
-  inconsistant(0),
-  killcount(0),
-  itemcount(0),
-  secretcount(0),
-  damagecount(0),
-  bonuscount(0),
-  hazardcount(0),
-  poisoncount(0),
-  poisoner(0),
-  attacker(0),
-  extralight(0),
-  morphTics(0),
-  MorphedPlayerClass(0),
-  MorphStyle(0),
-  MorphExitFlash(0),
-  PremorphWeapon(0),
-  chickenPeck(0),
-  jumpTics(0),
-  onground(0),
-  respawn_time(0),
-  camera(0),
-  air_finished(0),
-  MUSINFOactor(0),
-  MUSINFOtics(-1),
-  crouching(0),
-  crouchdir(0),
-  Bot(0),
-  BlendR(0),
-  BlendG(0),
-  BlendB(0),
-  BlendA(0),
-  LogText(),
-  crouchfactor(0),
-  crouchoffset(0),
-  crouchviewdelta(0),
-  ConversationNPC(0),
-  ConversationPC(0),
-  ConversationNPCAngle(0.),
-  ConversationFaceTalker(0)
-{
-	memset (&cmd, 0, sizeof(cmd));
-	memset (frags, 0, sizeof(frags));
-}
-
 player_t::~player_t()
 {
 	DestroyPSprites();
diff --git a/src/r_defs.h b/src/r_defs.h
index 4422fbf8dd..ffe5269691 100644
--- a/src/r_defs.h
+++ b/src/r_defs.h
@@ -582,7 +582,7 @@ struct FTransform
 
 struct secspecial_t
 {
-	FNameNoInit damagetype;		// [RH] Means-of-death for applied damage
+	FName damagetype;		// [RH] Means-of-death for applied damage
 	int damageamount;			// [RH] Damage to do while standing on floor
 	short special;
 	short damageinterval;	// Interval for damage application
@@ -997,7 +997,7 @@ public:
 	short		seqType;		// this sector's sound sequence
 
 	int			sky;
-	FNameNoInit	SeqName;		// Sound sequence name. Setting seqType non-negative will override this.
+	FName	SeqName;		// Sound sequence name. Setting seqType non-negative will override this.
 
 	DVector2	centerspot;		// origin for any sounds played by the sector
 	int 		validcount;		// if == validcount, already checked
@@ -1047,7 +1047,7 @@ public:
 	struct msecnode_t *touching_renderthings; // this is used to allow wide things to be rendered not only from their main sector.
 
 	double gravity;			// [RH] Sector gravity (1.0 is normal)
-	FNameNoInit damagetype;		// [RH] Means-of-death for applied damage
+	FName damagetype;		// [RH] Means-of-death for applied damage
 	int damageamount;			// [RH] Damage to do while standing on floor
 	short damageinterval;	// Interval for damage application
 	short leakydamage;		// chance of leaking through radiation suit
diff --git a/src/s_sndseq.cpp b/src/s_sndseq.cpp
index 6f99fad6eb..a3937a01ea 100644
--- a/src/s_sndseq.cpp
+++ b/src/s_sndseq.cpp
@@ -314,7 +314,7 @@ void DSeqNode::Serialize(FSerializer &arc)
 {
 	int seqOffset;
 	unsigned int i;
-	FName seqName;
+	FName seqName = NAME_None;
 	int delayTics = 0;
 	FSoundID id;
 	float volume;
@@ -571,8 +571,8 @@ void S_ParseSndSeq (int levellump)
 	TArray<uint32_t> ScriptTemp;
 	int lastlump, lump;
 	char seqtype = ':';
-	FName seqname;
-	FName slot;
+	FName seqname = NAME_None;
+	FName slot = NAME_None;
 	int stopsound;
 	int delaybase;
 	float volumebase;
diff --git a/src/sc_man.cpp b/src/sc_man.cpp
index 3399947cfa..44fbdb42ca 100644
--- a/src/sc_man.cpp
+++ b/src/sc_man.cpp
@@ -211,7 +211,6 @@ FScanner &FScanner::operator=(const FScanner &other)
 	TokenType = other.TokenType;
 	Number = other.Number;
 	Float = other.Float;
-	Name = other.Name;
 	Line = other.Line;
 	End = other.End;
 	Crossed = other.Crossed;
@@ -619,11 +618,7 @@ bool FScanner::GetToken ()
 {
 	if (ScanString (true))
 	{
-		if (TokenType == TK_NameConst)
-		{
-			Name = FName(String);
-		}
-		else if (TokenType == TK_IntConst)
+		if (TokenType == TK_IntConst)
 		{
 			char *stopper;
 			// Check for unsigned
diff --git a/src/sc_man.h b/src/sc_man.h
index 9962cbde09..9c4f34a22c 100644
--- a/src/sc_man.h
+++ b/src/sc_man.h
@@ -82,7 +82,6 @@ public:
 	int TokenType;
 	int Number;
 	double Float;
-	FName Name;
 	int Line;
 	bool End;
 	bool Crossed;
diff --git a/src/scripting/backend/codegen.cpp b/src/scripting/backend/codegen.cpp
index 0e8bd619fb..c8fcb1f090 100644
--- a/src/scripting/backend/codegen.cpp
+++ b/src/scripting/backend/codegen.cpp
@@ -9336,10 +9336,8 @@ ExpEmit FxFlopFunctionCall::Emit(VMFunctionBuilder *build)
 //==========================================================================
 
 FxVectorBuiltin::FxVectorBuiltin(FxExpression *self, FName name)
-	:FxExpression(EFX_VectorBuiltin, self->ScriptPosition)
+	:FxExpression(EFX_VectorBuiltin, self->ScriptPosition), Function(name), Self(self)
 {
-	Self = self;
-	Function = name;
 }
 
 FxVectorBuiltin::~FxVectorBuiltin()
@@ -11136,7 +11134,7 @@ ExpEmit FxRuntimeStateIndex::Emit(VMFunctionBuilder *build)
 FxMultiNameState::FxMultiNameState(const char *_statestring, const FScriptPosition &pos, PClassActor *checkclass)
 	:FxExpression(EFX_MultiNameState, pos)
 {
-	FName scopename;
+	FName scopename = NAME_None;
 	FString statestring = _statestring;
 	int scopeindex = statestring.IndexOf("::");
 
@@ -11145,10 +11143,6 @@ FxMultiNameState::FxMultiNameState(const char *_statestring, const FScriptPositi
 		scopename = FName(statestring, scopeindex, false);
 		statestring = statestring.Right(statestring.Len() - scopeindex - 2);
 	}
-	else
-	{
-		scopename = NAME_None;
-	}
 	names = MakeStateNameList(statestring);
 	names.Insert(0, scopename);
 	scope = checkclass;
diff --git a/src/scripting/backend/codegen.h b/src/scripting/backend/codegen.h
index 88ea7bcdd7..0925032820 100644
--- a/src/scripting/backend/codegen.h
+++ b/src/scripting/backend/codegen.h
@@ -369,7 +369,7 @@ public:
 class FxIdentifier : public FxExpression
 {
 public:
-	FName Identifier;
+	FName Identifier = NAME_None;
 	bool noglobal = false;
 
 	FxIdentifier(FName i, const FScriptPosition &p);
diff --git a/src/scripting/decorate/olddecorations.cpp b/src/scripting/decorate/olddecorations.cpp
index 62a00fe57d..209bf393d2 100644
--- a/src/scripting/decorate/olddecorations.cpp
+++ b/src/scripting/decorate/olddecorations.cpp
@@ -101,12 +101,11 @@ void ParseOldDecoration(FScanner &sc, EDefinitionType def, PNamespace *ns)
 	FExtraInfo extra;
 	PClassActor *type;
 	PClassActor *parent;
-	FName typeName;
 
 	parent = (def == DEF_Pickup) ? PClass::FindActor("FakeInventory") : RUNTIME_CLASS(AActor);
 
 	sc.MustGetString();
-	typeName = FName(sc.String);
+	FName typeName = FName(sc.String);
 	type = DecoDerivedClass(FScriptPosition(sc), parent, typeName);
 	ResetBaggage(&bag, parent);
 	bag.Namespace = ns;
diff --git a/src/scripting/decorate/thingdef_exp.cpp b/src/scripting/decorate/thingdef_exp.cpp
index c94b980930..4a1a829228 100644
--- a/src/scripting/decorate/thingdef_exp.cpp
+++ b/src/scripting/decorate/thingdef_exp.cpp
@@ -421,7 +421,7 @@ static FxExpression *ParseExpression0 (FScanner &sc, PClassActor *cls)
 	}
 	else if (sc.CheckToken(TK_NameConst))
 	{
-		return new FxConstant(sc.Name, scpos);
+		return new FxConstant(FName(sc.String), scpos);
 	}
 	else if (sc.CheckToken(TK_StringConst))
 	{
diff --git a/src/scripting/decorate/thingdef_parse.cpp b/src/scripting/decorate/thingdef_parse.cpp
index 43330d58f3..eb553028d3 100644
--- a/src/scripting/decorate/thingdef_parse.cpp
+++ b/src/scripting/decorate/thingdef_parse.cpp
@@ -1029,9 +1029,7 @@ PClassActor *CreateNewActor(const FScriptPosition &sc, FName typeName, FName par
 //==========================================================================
 static PClassActor *ParseActorHeader(FScanner &sc, Baggage *bag)
 {
-	FName typeName;
-	FName parentName;
-	FName replaceName;
+	FName replaceName = NAME_None;
 	bool native = false;
 	int DoomEdNum = -1;
 
@@ -1044,7 +1042,7 @@ static PClassActor *ParseActorHeader(FScanner &sc, Baggage *bag)
 		*colon++ = 0;
 	}
 
-	typeName = sc.String;
+	FName typeName = sc.String;
 
 	// Do some tweaking so that a definition like 'Actor:Parent' which is read as a single token is recognized as well
 	// without having resort to C-mode (which disallows periods in actor names.)
@@ -1071,7 +1069,7 @@ static PClassActor *ParseActorHeader(FScanner &sc, Baggage *bag)
 		sc.UnGet();
 	}
 
-	parentName = colon;
+	FName parentName = colon;
 
 	// Check for "replaces"
 	if (sc.CheckString ("replaces"))
diff --git a/src/scripting/thingdef_properties.cpp b/src/scripting/thingdef_properties.cpp
index e5338e37e3..522a569eea 100644
--- a/src/scripting/thingdef_properties.cpp
+++ b/src/scripting/thingdef_properties.cpp
@@ -569,9 +569,8 @@ DEFINE_PROPERTY(painchance, ZI, Actor)
 	}
 	else
 	{
-		FName painType;
-		if (!stricmp(str, "Normal")) painType = NAME_None;
-		else painType=str;
+		FName painType = NAME_None;
+		if (stricmp(str, "Normal")) painType = str;
 
 		info->SetPainChance(painType, id);
 	}
@@ -897,15 +896,14 @@ DEFINE_PROPERTY(damagefactor, ZF, Actor)
 	PROP_STRING_PARM(str, 0);
 	PROP_DOUBLE_PARM(id, 1);
 
-	if (str == NULL)
+	if (str == nullptr)
 	{
 		defaults->DamageFactor = id;
 	}
 	else
 	{
-		FName dmgType;
-		if (!stricmp(str, "Normal")) dmgType = NAME_None;
-		else dmgType=str;
+		FName dmgType = NAME_None;
+		if (stricmp(str, "Normal")) dmgType = str;
 
 		info->SetDamageFactor(dmgType, id);
 	}
diff --git a/src/scripting/types.cpp b/src/scripting/types.cpp
index 7aed2850cc..269de5cc96 100644
--- a/src/scripting/types.cpp
+++ b/src/scripting/types.cpp
@@ -1593,10 +1593,8 @@ PClassPointer *NewClassPointer(PClass *restrict)
 //==========================================================================
 
 PEnum::PEnum(FName name, PTypeBase *outer)
-: PInt(4, false)
+: PInt(4, false), Outer(outer), EnumName(name)
 {
-	EnumName = name;
-	Outer = outer;
 	Flags |= TYPE_IntNotInt;
 	mDescriptiveName.Format("Enum<%s>", name.GetChars());
 }
diff --git a/src/scripting/types.h b/src/scripting/types.h
index 0817aa99dc..52f1fc464b 100644
--- a/src/scripting/types.h
+++ b/src/scripting/types.h
@@ -238,10 +238,10 @@ protected:
 class PContainerType : public PCompoundType
 {
 public:
-	PTypeBase		*Outer;			// object this type is contained within
-	FName			TypeName;		// this type's name
+	PTypeBase		*Outer = nullptr;			// object this type is contained within
+	FName			TypeName = NAME_None;		// this type's name
 
-	PContainerType() : Outer(NULL) 
+	PContainerType()
 	{
 		mDescriptiveName = "ContainerType";
 		Flags |= TYPE_Container;
diff --git a/src/scripting/zscript/zcc_parser.cpp b/src/scripting/zscript/zcc_parser.cpp
index 693ffcffa6..5ddc9207da 100644
--- a/src/scripting/zscript/zcc_parser.cpp
+++ b/src/scripting/zscript/zcc_parser.cpp
@@ -274,7 +274,7 @@ static void ParseSingleFile(FScanner *pSC, const char *filename, int lump, void
 			break;
 
 		case TK_NameConst:
-			value.Int = sc.Name;
+			value.Int = FName(sc.String).GetIndex();
 			tokentype = ZCC_NAMECONST;
 			break;
 
diff --git a/src/serializer.cpp b/src/serializer.cpp
index 58d5658d48..fe8864a337 100644
--- a/src/serializer.cpp
+++ b/src/serializer.cpp
@@ -2147,7 +2147,7 @@ template<> FSerializer &Serialize(FSerializer &arc, const char *key, FFont *&fon
 	}
 	else
 	{
-		FName n;
+		FName n = NAME_None;
 		arc(key, n);
 		font = V_GetFont(n);
 		if (font == nullptr)
diff --git a/src/textures/animations.cpp b/src/textures/animations.cpp
index b2c0e3e562..c1b8f5c480 100644
--- a/src/textures/animations.cpp
+++ b/src/textures/animations.cpp
@@ -789,6 +789,7 @@ void FTextureManager::ParseAnimatedDoor(FScanner &sc)
 
 	sc.MustGetString();
 	anim.BaseTexture = CheckForTexture (sc.String, ETextureType::Wall, texflags);
+	anim.OpenSound = anim.CloseSound = NAME_None;
 
 	if (!anim.BaseTexture.Exists())
 	{
diff --git a/src/umapinfo.cpp b/src/umapinfo.cpp
index d7997a0834..3c15176322 100644
--- a/src/umapinfo.cpp
+++ b/src/umapinfo.cpp
@@ -403,7 +403,7 @@ void CommitUMapinfo(level_info_t *defaultinfo)
 		if (map.nextmap[0]) levelinfo->NextMap = map.nextmap;
 		else if (map.endpic[0])
 		{
-			FName name;
+			FName name = NAME_None;
 
 			if (!stricmp(map.endpic, "$CAST"))
 			{
diff --git a/src/v_font.h b/src/v_font.h
index 83ea5de195..383363ce85 100644
--- a/src/v_font.h
+++ b/src/v_font.h
@@ -130,7 +130,7 @@ protected:
 	uint8_t *PatchRemap;
 
 	int Lump;
-	FName FontName;
+	FName FontName = NAME_None;
 	FFont *Next;
 
 	static FFont *FirstFont;
diff --git a/src/zstring.h b/src/zstring.h
index c6cd44fc92..5ab2674142 100644
--- a/src/zstring.h
+++ b/src/zstring.h
@@ -454,7 +454,6 @@ namespace StringFormat
 inline FName::FName(const FString &text) { Index = NameData.FindName (text.GetChars(), text.Len(), false); }
 inline FName::FName(const FString &text, bool noCreate) { Index = NameData.FindName (text.GetChars(), text.Len(), noCreate); }
 inline FName &FName::operator = (const FString &text) { Index = NameData.FindName (text.GetChars(), text.Len(), false); return *this; }
-inline FName &FNameNoInit::operator = (const FString &text) { Index = NameData.FindName (text.GetChars(), text.Len(), false); return *this; }
 
 // Hash FStrings on their contents. (used by TMap)
 extern unsigned int SuperFastHash (const char *data, size_t len);