diff --git a/wadsrc/static/zscript/doom/archvile.txt b/wadsrc/static/zscript/doom/archvile.txt
index a19e5c705c..2ea153be1c 100644
--- a/wadsrc/static/zscript/doom/archvile.txt
+++ b/wadsrc/static/zscript/doom/archvile.txt
@@ -116,10 +116,13 @@ extend class Actor
 			A_FaceTarget ();
 
 			Actor fog = Spawn (fire, target.Pos, ALLOW_REPLACE);
-			tracer = fog;
-			fog.target = self;
-			fog.tracer = self.target;
-			fog.A_Fire(0);
+			if (fog != null)
+			{
+				tracer = fog;
+				fog.target = self;
+				fog.tracer = self.target;
+				fog.A_Fire(0);
+			}
 		}
 	}
 	
diff --git a/wadsrc/static/zscript/doom/fatso.txt b/wadsrc/static/zscript/doom/fatso.txt
index 3831110c0e..e70c979243 100644
--- a/wadsrc/static/zscript/doom/fatso.txt
+++ b/wadsrc/static/zscript/doom/fatso.txt
@@ -188,6 +188,7 @@ extend class Actor
 
 		// Now launch mushroom cloud
 		Actor aimtarget = Spawn("Mapspot", pos, NO_REPLACE);	// We need something to aim at.
+		if (aimtarget == null) return;
 		Actor owner = (flags & MSF_DontHurt) ? target : self;
 		aimtarget.Height = Height;
 		
diff --git a/wadsrc/static/zscript/doom/revenant.txt b/wadsrc/static/zscript/doom/revenant.txt
index 2fa335a2df..82d5639340 100644
--- a/wadsrc/static/zscript/doom/revenant.txt
+++ b/wadsrc/static/zscript/doom/revenant.txt
@@ -233,10 +233,13 @@ extend class Actor
 		SpawnPuff ("BulletPuff", pos, angle, angle, 3);
 		Actor smoke = Spawn ("RevenantTracerSmoke", Vec3Offset(-Vel.X, -Vel.Y, 0.), ALLOW_REPLACE);
 	
-		smoke.Vel.Z = 1.;
-		smoke.tics -= random[Tracer](0, 3);
-		if (smoke.tics < 1)
-			smoke.tics = 1;
+		if (smoke != null)
+		{
+			smoke.Vel.Z = 1.;
+			smoke.tics -= random[Tracer](0, 3);
+			if (smoke.tics < 1)
+				smoke.tics = 1;
+		}
 
 		// The rest of this function was identical with Strife's version, except for the angle being used.
 		A_Tracer2(16.875);
diff --git a/wadsrc/static/zscript/heretic/chicken.txt b/wadsrc/static/zscript/heretic/chicken.txt
index 9f4429d50f..b60a891363 100644
--- a/wadsrc/static/zscript/heretic/chicken.txt
+++ b/wadsrc/static/zscript/heretic/chicken.txt
@@ -335,11 +335,14 @@ extend class Actor
 		for (int i = 0; i < count; i++)
 		{
 			Actor mo = Spawn("Feather", pos + (0, 0, 20), NO_REPLACE);
-			mo.target = self;
-			mo.Vel.X = Random2[Feathers]() / 256.;
-			mo.Vel.Y = Random2[Feathers]() / 256.;
-			mo.Vel.Z = 1. + random[Feathers]() / 128.;
-			mo.SetState (mo.SpawnState + (random[Feathers]()&7));
+			if (mo != null)
+			{
+				mo.target = self;
+				mo.Vel.X = Random2[Feathers]() / 256.;
+				mo.Vel.Y = Random2[Feathers]() / 256.;
+				mo.Vel.Z = 1. + random[Feathers]() / 128.;
+				mo.SetState (mo.SpawnState + (random[Feathers]()&7));
+			}
 		}
 	}
 
diff --git a/wadsrc/static/zscript/heretic/dsparil.txt b/wadsrc/static/zscript/heretic/dsparil.txt
index 54931b65e8..579f474928 100644
--- a/wadsrc/static/zscript/heretic/dsparil.txt
+++ b/wadsrc/static/zscript/heretic/dsparil.txt
@@ -166,13 +166,14 @@ class Sorcerer1 : Actor
 	{
 		bSolid = false;
 		Actor mo = Spawn("Sorcerer2", Pos, ALLOW_REPLACE);
-		mo.Translation = Translation;
-		mo.SetStateLabel("Rise");
-		mo.angle = angle;
-		mo.CopyFriendliness (self, true);
+		if (mo != null)
+		{
+			mo.Translation = Translation;
+			mo.SetStateLabel("Rise");
+			mo.angle = angle;
+			mo.CopyFriendliness (self, true);
+		}
 	}
-
-	
 }
 
 
@@ -434,9 +435,12 @@ class Sorcerer2FX1 : Actor
 		for (int i = 0; i < 2; i++)
 		{
 			Actor mo = Spawn("Sorcerer2FXSpark", pos, ALLOW_REPLACE);
-			mo.Vel.X = Random2[BlueSpark]() / 128.;
-			mo.Vel.Y = Random2[BlueSpark]() / 128.;
-			mo.Vel.Z = 1. + Random[BlueSpark]() / 256.;
+			if (mo != null)
+			{
+				mo.Vel.X = Random2[BlueSpark]() / 128.;
+				mo.Vel.Y = Random2[BlueSpark]() / 128.;
+				mo.Vel.Z = 1. + Random[BlueSpark]() / 256.;
+			}
 		}
 	}
 }
diff --git a/wadsrc/static/zscript/heretic/hereticartifacts.txt b/wadsrc/static/zscript/heretic/hereticartifacts.txt
index 3ef265735a..20f52a2c93 100644
--- a/wadsrc/static/zscript/heretic/hereticartifacts.txt
+++ b/wadsrc/static/zscript/heretic/hereticartifacts.txt
@@ -149,7 +149,7 @@ Class ArtiTimeBomb : Inventory
 	override bool Use (bool pickup)
 	{
 		Actor mo = Spawn("ActivatedTimeBomb", Owner.Vec3Angle(24., Owner.angle, - Owner.Floorclip), ALLOW_REPLACE);
-		mo.target = Owner;
+		if (mo != null) mo.target = Owner;
 		return true;
 	}
 	
diff --git a/wadsrc/static/zscript/heretic/hereticimp.txt b/wadsrc/static/zscript/heretic/hereticimp.txt
index c1443de032..e6915c7f6b 100644
--- a/wadsrc/static/zscript/heretic/hereticimp.txt
+++ b/wadsrc/static/zscript/heretic/hereticimp.txt
@@ -102,14 +102,20 @@ class HereticImp : Actor
 		bNoGravity = false;
 
 		chunk = Spawn("HereticImpChunk1", pos, ALLOW_REPLACE);
-		chunk.vel.x = random2[ImpExplode]() / 64.;
-		chunk.vel.y = random2[ImpExplode]() / 64.;
-		chunk.vel.z = 9;
+		if (chunk != null)
+		{
+			chunk.vel.x = random2[ImpExplode]() / 64.;
+			chunk.vel.y = random2[ImpExplode]() / 64.;
+			chunk.vel.z = 9;
+		}
 
 		chunk = Spawn("HereticImpChunk2", pos, ALLOW_REPLACE);
-		chunk.vel.x = random2[ImpExplode]() / 64.;
-		chunk.vel.y = random2[ImpExplode]() / 64.;
-		chunk.vel.z = 9;
+		if (chunk != null)
+		{
+			chunk.vel.x = random2[ImpExplode]() / 64.;
+			chunk.vel.y = random2[ImpExplode]() / 64.;
+			chunk.vel.z = 9;
+		}
 		
 		if (extremecrash)
 		{
diff --git a/wadsrc/static/zscript/heretic/hereticmisc.txt b/wadsrc/static/zscript/heretic/hereticmisc.txt
index ea79f5f803..b662173527 100644
--- a/wadsrc/static/zscript/heretic/hereticmisc.txt
+++ b/wadsrc/static/zscript/heretic/hereticmisc.txt
@@ -60,10 +60,13 @@ class Pod : Actor
 		for (int count = chance > 240 ? 2 : 1; count; count--)
 		{
 			Actor goo = Spawn(gootype, pos + (0, 0, 48), ALLOW_REPLACE);
-			goo.target = self;
-			goo.Vel.X = Random2[PodPain]() / 128.;
-			goo.Vel.Y = Random2[PodPain]() / 128.;
-			goo.Vel.Z = 0.5 + random[PodPain]() / 128.;
+			if (goo != null)
+			{
+				goo.target = self;
+				goo.Vel.X = Random2[PodPain]() / 128.;
+				goo.Vel.Y = Random2[PodPain]() / 128.;
+				goo.Vel.Z = 0.5 + random[PodPain]() / 128.;
+			}
 		}
 	}
 
@@ -295,12 +298,15 @@ class Volcano : Actor
 		for (int i = 0; i < count; i++)
 		{
 			Actor blast = Spawn("VolcanoBlast", pos + (0, 0, 44), ALLOW_REPLACE);
-			blast.target = self;
-			blast.Angle = random[VolcanoBlast]() * (360 / 256.);
-			blast.VelFromAngle(1.);
-			blast.Vel.Z = 2.5 + random[VolcanoBlast]() / 64.;
-			blast.A_PlaySound ("world/volcano/shoot", CHAN_BODY);
-			blast.CheckMissileSpawn (radius);
+			if (blast != null)
+			{
+				blast.target = self;
+				blast.Angle = random[VolcanoBlast]() * (360 / 256.);
+				blast.VelFromAngle(1.);
+				blast.Vel.Z = 2.5 + random[VolcanoBlast]() / 64.;
+				blast.A_PlaySound ("world/volcano/shoot", CHAN_BODY);
+				blast.CheckMissileSpawn (radius);
+			}
 		}
 	}
 }
diff --git a/wadsrc/static/zscript/heretic/ironlich.txt b/wadsrc/static/zscript/heretic/ironlich.txt
index 8a4dd4c05c..65e510932e 100644
--- a/wadsrc/static/zscript/heretic/ironlich.txt
+++ b/wadsrc/static/zscript/heretic/ironlich.txt
@@ -102,12 +102,15 @@ class Ironlich : Actor
 					{
 						A_PlaySound ("ironlich/attack1", CHAN_BODY);
 					}
-					fire.target = baseFire.target;
-					fire.angle = baseFire.angle;
-					fire.Vel = baseFire.Vel;
-					fire.SetDamage(0);
-					fire.health = (i+1) * 2;
-					fire.CheckMissileSpawn (radius);
+					if (fire != null)
+					{
+						fire.target = baseFire.target;
+						fire.angle = baseFire.angle;
+						fire.Vel = baseFire.Vel;
+						fire.SetDamage(0);
+						fire.health = (i+1) * 2;
+						fire.CheckMissileSpawn (radius);
+					}
 				}
 			}
 		}
@@ -167,11 +170,14 @@ class HeadFX1 : Actor
 		for (int i = 0; i < 8; i++)
 		{
 			Actor shard = Spawn("HeadFX2", Pos, ALLOW_REPLACE);
-			shard.target = target;
-			shard.angle = i*45.;
-			shard.VelFromAngle();
-			shard.Vel.Z = -.6;
-			shard.CheckMissileSpawn (radius);
+			if (shard != null)
+			{
+				shard.target = target;
+				shard.angle = i*45.;
+				shard.VelFromAngle();
+				shard.Vel.Z = -.6;
+				shard.CheckMissileSpawn (radius);
+			}
 		}
 	}
 }
diff --git a/wadsrc/static/zscript/heretic/knight.txt b/wadsrc/static/zscript/heretic/knight.txt
index 01b7252c60..e66e191f04 100644
--- a/wadsrc/static/zscript/heretic/knight.txt
+++ b/wadsrc/static/zscript/heretic/knight.txt
@@ -163,8 +163,11 @@ class RedAxe : KnightAxe
 		double xo = random2[DripBlood]() / 32.0;
 		double yo = random2[DripBlood]() / 32.0;
 		Actor mo = Spawn ("Blood", Vec3Offset(xo, yo, 0.), ALLOW_REPLACE);
-		mo.Vel.X = random2[DripBlood]() / 64.0;
-		mo.Vel.Y = random2[DripBlood]() / 64.0;
-		mo.Gravity = 1./8;
+		if (mo != null)
+		{
+			mo.Vel.X = random2[DripBlood]() / 64.0;
+			mo.Vel.Y = random2[DripBlood]() / 64.0;
+			mo.Gravity = 1./8;
+		}
 	}
 }
diff --git a/wadsrc/static/zscript/heretic/weaponblaster.txt b/wadsrc/static/zscript/heretic/weaponblaster.txt
index 612e630c0b..913abffdb6 100644
--- a/wadsrc/static/zscript/heretic/weaponblaster.txt
+++ b/wadsrc/static/zscript/heretic/weaponblaster.txt
@@ -160,10 +160,13 @@ class BlasterFX1 : FastProjectile
 		for(int i = 0; i < 8; i++)
 		{
 			Actor ripper = Spawn("Ripper", pos, ALLOW_REPLACE);
-			ripper.target = target;
-			ripper.angle = i*45;
-			ripper.VelFromAngle();
-			ripper.CheckMissileSpawn (radius);
+			if (ripper != null)
+			{
+				ripper.target = target;
+				ripper.angle = i*45;
+				ripper.VelFromAngle();
+				ripper.CheckMissileSpawn (radius);
+			}
 		}
 	}
 }
diff --git a/wadsrc/static/zscript/heretic/weaponmace.txt b/wadsrc/static/zscript/heretic/weaponmace.txt
index fd11e685fd..3ef747e0f9 100644
--- a/wadsrc/static/zscript/heretic/weaponmace.txt
+++ b/wadsrc/static/zscript/heretic/weaponmace.txt
@@ -60,14 +60,17 @@ class Mace : HereticWeapon
 		if (random[MaceAtk]() < 28)
 		{
 			Actor ball = Spawn("MaceFX2", Pos + (0, 0, 28 - Floorclip), ALLOW_REPLACE);
-			ball.Vel.Z = 2 - clamp(tan(pitch), -5, 5);
-			ball.target = self;
-			ball.angle = self.angle;
-			ball.AddZ(ball.Vel.Z);
-			ball.VelFromAngle();
-			ball.Vel += Vel.xy / 2;
-			ball.A_PlaySound ("weapons/maceshoot", CHAN_BODY);
-			ball.CheckMissileSpawn (radius);
+			if (ball != null)
+			{
+				ball.Vel.Z = 2 - clamp(tan(pitch), -5, 5);
+				ball.target = self;
+				ball.angle = self.angle;
+				ball.AddZ(ball.Vel.Z);
+				ball.VelFromAngle();
+				ball.Vel += Vel.xy / 2;
+				ball.A_PlaySound ("weapons/maceshoot", CHAN_BODY);
+				ball.CheckMissileSpawn (radius);
+			}
 		}
 		else
 		{
@@ -260,18 +263,24 @@ class MaceFX2 : MaceFX1
 				SetState (SpawnState);
 
 				Actor tiny = Spawn("MaceFX3", Pos, ALLOW_REPLACE);
-				tiny.target = target;
-				tiny.angle = angle + 90.;
-				tiny.VelFromAngle(Vel.Z - 1.);
-				tiny.Vel += (Vel.XY * .5, Vel.Z);
-				tiny.CheckMissileSpawn (radius);
+				if (tiny != null)
+				{
+					tiny.target = target;
+					tiny.angle = angle + 90.;
+					tiny.VelFromAngle(Vel.Z - 1.);
+					tiny.Vel += (Vel.XY * .5, Vel.Z);
+					tiny.CheckMissileSpawn (radius);
+				}
 
 				tiny = Spawn("MaceFX3", Pos, ALLOW_REPLACE);
-				tiny.target = target;
-				tiny.angle = angle - 90.;
-				tiny.VelFromAngle(Vel.Z - 1.);
-				tiny.Vel += (Vel.XY * .5, Vel.Z);
-				tiny.CheckMissileSpawn (radius);
+				if (tiny != null)
+				{
+					tiny.target = target;
+					tiny.angle = angle - 90.;
+					tiny.VelFromAngle(Vel.Z - 1.);
+					tiny.Vel += (Vel.XY * .5, Vel.Z);
+					tiny.CheckMissileSpawn (radius);
+				}
 				return;
 			}
 		}
diff --git a/wadsrc/static/zscript/heretic/weaponphoenix.txt b/wadsrc/static/zscript/heretic/weaponphoenix.txt
index 6b949b8f61..eb75acb1dd 100644
--- a/wadsrc/static/zscript/heretic/weaponphoenix.txt
+++ b/wadsrc/static/zscript/heretic/weaponphoenix.txt
@@ -151,16 +151,19 @@ class PhoenixRodPowered : PhoenixRod
 
 		slope += 0.1;
 		Actor mo = Spawn("PhoenixFX2", spawnpos, ALLOW_REPLACE);
-		mo.target = self;
-		mo.Angle = Angle;
-		mo.VelFromAngle();
-		mo.Vel.XY += Vel.XY;
-		mo.Vel.Z = mo.Speed * slope;
+		if (mo != null)
+		{
+			mo.target = self;
+			mo.Angle = Angle;
+			mo.VelFromAngle();
+			mo.Vel.XY += Vel.XY;
+			mo.Vel.Z = mo.Speed * slope;
+			mo.CheckMissileSpawn (radius);
+		}
 		if (!player.refire)
 		{
 			A_PlaySound("weapons/phoenixpowshoot", CHAN_WEAPON, 1, true);
 		}	
-		mo.CheckMissileSpawn (radius);
 	}
 
 	//----------------------------------------------------------------------------
@@ -239,10 +242,16 @@ class PhoenixFX1 : Actor
 		//[RH] Heretic never sets the target for seeking
 		//P_SeekerMissile (self, 5, 10);
 		Actor puff = Spawn("PhoenixPuff", Pos, ALLOW_REPLACE);
-		puff.Vel.XY = AngleToVector(Angle + 90, 1.3);
+		if (puff != null)
+		{
+			puff.Vel.XY = AngleToVector(Angle + 90, 1.3);
+		}
 
 		puff = Spawn("PhoenixPuff", Pos, ALLOW_REPLACE);
-		puff.Vel.XY = AngleToVector(Angle - 90, 1.3);
+		if (puff != null)
+		{
+			puff.Vel.XY = AngleToVector(Angle - 90, 1.3);
+		}
 	}
 
 	
diff --git a/wadsrc/static/zscript/hexen/blastradius.txt b/wadsrc/static/zscript/hexen/blastradius.txt
index 7374a4523d..3dd355b7cf 100644
--- a/wadsrc/static/zscript/hexen/blastradius.txt
+++ b/wadsrc/static/zscript/hexen/blastradius.txt
@@ -70,7 +70,8 @@ extend class Actor
 			// [RH] Floor and ceiling huggers should not be blasted vertically.
 			if (!victim.bFloorHugger && !victim.bCeilingHugger)
 			{
-				mo.Vel.Z = victim.Vel.Z = 8;
+				victim.Vel.Z = 8;
+				if (mo != null) mo.Vel.Z = 8;
 			}
 		}
 		else
diff --git a/wadsrc/static/zscript/hexen/clericholy.txt b/wadsrc/static/zscript/hexen/clericholy.txt
index 33b69bf25a..3846c75d5e 100644
--- a/wadsrc/static/zscript/hexen/clericholy.txt
+++ b/wadsrc/static/zscript/hexen/clericholy.txt
@@ -567,14 +567,17 @@ class HolyTail : Actor
 	static void SpawnSpiritTail (Actor spirit)
 	{
 		Actor tail = Spawn ("HolyTail", spirit.Pos, ALLOW_REPLACE);
-		tail.target = spirit; // parent
-		for (int i = 1; i < 3; i++)
+		if (tail != null)
 		{
-			Actor next = Spawn ("HolyTailTrail", spirit.Pos, ALLOW_REPLACE);
-			tail.tracer = next;
-			tail = next;
+			tail.target = spirit; // parent
+			for (int i = 1; i < 3; i++)
+			{
+				Actor next = Spawn ("HolyTailTrail", spirit.Pos, ALLOW_REPLACE);
+				tail.tracer = next;
+				tail = next;
+			}
+			tail.tracer = null; // last tail bit
 		}
-		tail.tracer = null; // last tail bit
 	}
 
 	//============================================================================
diff --git a/wadsrc/static/zscript/hexen/flechette.txt b/wadsrc/static/zscript/hexen/flechette.txt
index fc9268c5b0..3440312c9e 100644
--- a/wadsrc/static/zscript/hexen/flechette.txt
+++ b/wadsrc/static/zscript/hexen/flechette.txt
@@ -255,10 +255,13 @@ class ArtiPoisonBag : Inventory
 		}
 
 		class<Actor> spawntype = GetFlechetteType(other);
-		Inventory copy = Inventory(Spawn (spawntype));
-		copy.Amount = Amount;
-		copy.MaxAmount = MaxAmount;
-		GoAwayAndDie ();
+		let copy = Inventory(Spawn (spawntype));
+		if (copy != null)
+		{
+			copy.Amount = Amount;
+			copy.MaxAmount = MaxAmount;
+			GoAwayAndDie ();
+		}
 		return copy;
 	}
 }
diff --git a/wadsrc/static/zscript/hexen/korax.txt b/wadsrc/static/zscript/hexen/korax.txt
index 1c1f31712f..8f313bc19e 100644
--- a/wadsrc/static/zscript/hexen/korax.txt
+++ b/wadsrc/static/zscript/hexen/korax.txt
@@ -315,17 +315,20 @@ class Korax : Actor
 	private void SpawnKoraxMissile (Vector3 pos, Actor dest, Class<Actor> type)
 	{
 		Actor th = Spawn (type, pos, ALLOW_REPLACE);
-		th.target = self; // Originator
-		double an = th.AngleTo(dest);
-		if (dest.bShadow)
-		{ // Invisible target
-			an += Random2[KoraxMissile]() * (45/256.);
+		if (th != null)
+		{
+			th.target = self; // Originator
+			double an = th.AngleTo(dest);
+			if (dest.bShadow)
+			{ // Invisible target
+				an += Random2[KoraxMissile]() * (45/256.);
+			}
+			th.angle = an;
+			th.VelFromAngle();
+			double dist = dest.DistanceBySpeed(th, th.Speed);
+			th.Vel.Z = (dest.pos.z - pos.Z + 30) / dist;
+			th.CheckMissileSpawn(radius);
 		}
-		th.angle = an;
-		th.VelFromAngle();
-		double dist = dest.DistanceBySpeed(th, th.Speed);
-		th.Vel.Z = (dest.pos.z - pos.Z + 30) / dist;
-		th.CheckMissileSpawn(radius);
 	}
 
 	//============================================================================
diff --git a/wadsrc/static/zscript/raven/minotaur.txt b/wadsrc/static/zscript/raven/minotaur.txt
index 01cd635410..06bb6daae3 100644
--- a/wadsrc/static/zscript/raven/minotaur.txt
+++ b/wadsrc/static/zscript/raven/minotaur.txt
@@ -262,7 +262,7 @@ class Minotaur : Actor
 				type = "PunchPuff";
 			}
 			Actor puff = Spawn (type, Pos, ALLOW_REPLACE);
-			puff.Vel.Z = 2;
+			if (puff != null) puff.Vel.Z = 2;
 			special1--;
 		}
 		else
@@ -710,9 +710,12 @@ class MinotaurFX2 : MinotaurFX1
 		double y = Random2[MntrFloorFire]() / 64.;
 		
 		Actor mo = Spawn("MinotaurFX3", Vec2OffsetZ(x, y, floorz), ALLOW_REPLACE);
-		mo.target = target;
-		mo.Vel.X = MinVel; // Force block checking
-		mo.CheckMissileSpawn (radius);
+		if (mo != null)
+		{
+			mo.target = target;
+			mo.Vel.X = MinVel; // Force block checking
+			mo.CheckMissileSpawn (radius);
+		}
 	}
 }
 
diff --git a/wadsrc/static/zscript/strife/entityboss.txt b/wadsrc/static/zscript/strife/entityboss.txt
index a9ec94bb23..ff26280c3f 100644
--- a/wadsrc/static/zscript/strife/entityboss.txt
+++ b/wadsrc/static/zscript/strife/entityboss.txt
@@ -202,9 +202,12 @@ class EntityBoss : SpectralMonster
 			Vector3 pos = spot.Vec3Angle(secondRadius, an, tracer ? 70. : 0.);
 
 			second = Spawn("EntitySecond", pos, ALLOW_REPLACE);
-			second.CopyFriendliness(self, true);
-			second.A_FaceTarget();
-			second.VelFromAngle(i == 0? 4.8828125 : secondRadius * 4., an);
+			if (second != null)
+			{
+				second.CopyFriendliness(self, true);
+				second.A_FaceTarget();
+				second.VelFromAngle(i == 0? 4.8828125 : secondRadius * 4., an);
+			}
 		}
 	}
 	
diff --git a/wadsrc/static/zscript/strife/inquisitor.txt b/wadsrc/static/zscript/strife/inquisitor.txt
index 6d3c5bc7f7..5c15f4af7e 100644
--- a/wadsrc/static/zscript/strife/inquisitor.txt
+++ b/wadsrc/static/zscript/strife/inquisitor.txt
@@ -171,9 +171,12 @@ class Inquisitor : Actor
 	void A_TossArm ()
 	{
 		Actor foo = Spawn("InquisitorArm", Pos + (0,0,24), ALLOW_REPLACE);
-		foo.angle = angle - 90. + Random2[Inquisitor]() * (360./1024.);
-		foo.VelFromAngle(foo.Speed / 8);
-		foo.Vel.Z = random[Inquisitor]() / 64.;
+		if (foo != null)
+		{
+			foo.angle = angle - 90. + Random2[Inquisitor]() * (360./1024.);
+			foo.VelFromAngle(foo.Speed / 8);
+			foo.Vel.Z = random[Inquisitor]() / 64.;
+		}
 	}
 
 	
diff --git a/wadsrc/static/zscript/strife/rebels.txt b/wadsrc/static/zscript/strife/rebels.txt
index 24deea25b1..7302f1c020 100644
--- a/wadsrc/static/zscript/strife/rebels.txt
+++ b/wadsrc/static/zscript/strife/rebels.txt
@@ -163,6 +163,10 @@ class TeleporterBeacon : Inventory
 	{
 		Actor owner = target;
 		Actor rebel = Spawn("Rebel1", (pos.xy, floorz), ALLOW_REPLACE);
+		if (rebel == null)
+		{
+			return;
+		}
 		if (!rebel.TryMove (rebel.Pos.xy, true))
 		{
 			rebel.Destroy ();
diff --git a/wadsrc/static/zscript/strife/sigil.txt b/wadsrc/static/zscript/strife/sigil.txt
index 096915ccf2..bfdcae77a5 100644
--- a/wadsrc/static/zscript/strife/sigil.txt
+++ b/wadsrc/static/zscript/strife/sigil.txt
@@ -268,7 +268,7 @@ class Sigil : Weapon
 
 	action void A_FireSigil1 ()
 	{
-		Actor spot;
+		Actor spot = null;
 		FTranslatedLineTarget t;
 
 		if (player == null || player.ReadyWeapon == null)
diff --git a/wadsrc/static/zscript/strife/spectral.txt b/wadsrc/static/zscript/strife/spectral.txt
index 0878cff948..a56d9e7178 100644
--- a/wadsrc/static/zscript/strife/spectral.txt
+++ b/wadsrc/static/zscript/strife/spectral.txt
@@ -62,11 +62,13 @@ class SpectralMonster : Actor
 			return;
 
 		Actor foo = Spawn("SpectralLightningV2", Pos + (0, 0, 32), ALLOW_REPLACE);
-
-		foo.Vel.Z = -12;
-		foo.target = self;
-		foo.FriendPlayer = 0;
-		foo.tracer = target;
+		if (foo != null)
+		{
+			foo.Vel.Z = -12;
+			foo.target = self;
+			foo.FriendPlayer = 0;
+			foo.tracer = target;
+		}
 
 		Angle -= 90.;
 		for (int i = 0; i < 20; ++i)
@@ -217,9 +219,11 @@ class SpectralLightningH1 : SpectralLightningBase
 	void A_SpectralLightningTail ()
 	{
 		Actor foo = Spawn("SpectralLightningHTail", Vec3Offset(-Vel.X, -Vel.Y, 0.), ALLOW_REPLACE);
-
-		foo.Angle = Angle;
-		foo.FriendPlayer = FriendPlayer;
+		if (foo != null)
+		{
+			foo.Angle = Angle;
+			foo.FriendPlayer = FriendPlayer;
+		}
 	}
 }
 
@@ -386,15 +390,21 @@ class SpectralLightningSpot : SpectralLightningDeath1
 
 		Actor flash = Spawn (cls, Vec2OffsetZ(xo, yo, ONCEILINGZ), ALLOW_REPLACE);
 
-		flash.target = target;
-		flash.Vel.Z = -18;
-		flash.FriendPlayer = FriendPlayer;
+		if (flash != null)
+		{
+			flash.target = target;
+			flash.Vel.Z = -18;
+			flash.FriendPlayer = FriendPlayer;
+		}
 
 		flash = Spawn("SpectralLightningV2", (pos.xy, ONCEILINGZ), ALLOW_REPLACE);
 
-		flash.target = target;
-		flash.Vel.Z = -18;
-		flash.FriendPlayer = FriendPlayer;
+		if (flash != null)
+		{
+			flash.target = target;
+			flash.Vel.Z = -18;
+			flash.FriendPlayer = FriendPlayer;
+		}
 	}
 	
 }
diff --git a/wadsrc/static/zscript/strife/strifefunctions.txt b/wadsrc/static/zscript/strife/strifefunctions.txt
index ed6c3854ef..5e0312a954 100644
--- a/wadsrc/static/zscript/strife/strifefunctions.txt
+++ b/wadsrc/static/zscript/strife/strifefunctions.txt
@@ -133,7 +133,10 @@ extend class Actor
 	void A_DropFire()
 	{
 		Actor drop = Spawn("FireDroplet", pos + (0,0,24), ALLOW_REPLACE);
-		drop.Vel.Z = -1.;
+		if (drop != null)
+		{
+			drop.Vel.Z = -1.;
+		}
 		A_Explode(64, 64, XF_NOSPLASH, damagetype: 'Fire');
 	}