diff --git a/sources/Zeds/Mean/MeanZombieStalker.uc b/sources/Zeds/Mean/MeanZombieStalker.uc
index cb84cd5..53111d2 100644
--- a/sources/Zeds/Mean/MeanZombieStalker.uc
+++ b/sources/Zeds/Mean/MeanZombieStalker.uc
@@ -77,13 +77,14 @@ simulated function CloakStalker()
        SetOverlayMaterial(Material'KFX.FBDecloakShader', 0.25, true);
     }
 }
+
 simulated function UnCloakStalker()
 {
-    if( bZapped )
+    if (bZapped)
     {
        return;
     }
-    if( !bCrispified )
+    if (!bCrispified)
     {
        LastUncloakTime = Level.TimeSeconds;
 
@@ -92,8 +93,9 @@ simulated function UnCloakStalker()
        bUnlit = false;
 
        // 25% chance of our Enemy saying something about us being invisible
-       if( Level.NetMode!=NM_Client && !KFGameType(Level.Game).bDidStalkerInvisibleMessage && FRand()<0.25 && Controller.Enemy!=none &&
-        PlayerController(Controller.Enemy.Controller)!=none )
+       // added Controller check here
+       if (Level.NetMode!=NM_Client && !KFGameType(Level.Game).bDidStalkerInvisibleMessage && FRand()<0.25 && Controller != none && Controller.Enemy!=none &&
+        PlayerController(Controller.Enemy.Controller)!=none)
        {
            PlayerController(Controller.Enemy.Controller).Speech('AUTO', 17, "");
            KFGameType(Level.Game).bDidStalkerInvisibleMessage = true;
@@ -115,6 +117,7 @@ simulated function UnCloakStalker()
        }
     }
 }
+
 simulated function SetZappedBehavior()
 {
     super(NiceMonster).SetZappedBehavior();
diff --git a/sources/Zeds/Nice/NiceZombieStalker.uc b/sources/Zeds/Nice/NiceZombieStalker.uc
index 3e2c054..fc8ab30 100644
--- a/sources/Zeds/Nice/NiceZombieStalker.uc
+++ b/sources/Zeds/Nice/NiceZombieStalker.uc
@@ -115,13 +115,14 @@ simulated function CloakStalker()
        SetOverlayMaterial(Material'KFX.FBDecloakShader', 0.25, true);
     }
 }
+
 simulated function UnCloakStalker()
 {
-    if( bZapped )
+    if (bZapped)
     {
        return;
     }
-    if( !bCrispified )
+    if (!bCrispified)
     {
        LastUncloakTime = Level.TimeSeconds;
 
@@ -130,8 +131,9 @@ simulated function UnCloakStalker()
        bUnlit = false;
 
        // 25% chance of our Enemy saying something about us being invisible
-       if( Level.NetMode!=NM_Client && !KFGameType(Level.Game).bDidStalkerInvisibleMessage && FRand()<0.25 && Controller.Enemy!=none &&
-        PlayerController(Controller.Enemy.Controller)!=none )
+       // added Controller check here
+       if (Level.NetMode!=NM_Client && !KFGameType(Level.Game).bDidStalkerInvisibleMessage && FRand()<0.25 && Controller != none && Controller.Enemy!=none &&
+        PlayerController(Controller.Enemy.Controller) != none )
        {
            PlayerController(Controller.Enemy.Controller).Speech('AUTO', 17, "");
            KFGameType(Level.Game).bDidStalkerInvisibleMessage = true;
@@ -153,6 +155,7 @@ simulated function UnCloakStalker()
        }
     }
 }
+
 // Set the zed to the zapped behavior
 simulated function SetZappedBehavior()
 {