The position of Ryder Bond's Rolls Royce beside the funeral procession changes from scene to scene.
The young couple tell Sgt. Mayer they heard screams and ran to the pool, but they weren't doing that in the previous scene. They were laughing and casually walking to the pool.
However, the woman said they had come up, not run up, to the pool.
However, the woman said they had come up, not run up, to the pool.
In the final scene when the arcade has been set ablaze, a firetruck pulls up in front of the building with a fire hose already dangling from the rear and dragging in the street behind.
This is correct procedure. Before a firetruck arrives at the fire a fireman will jump off and hold the end of a connecting hose to attach to a fire hydrant, which may be located at the other end of the block. This helps save time.
This is correct procedure. Before a firetruck arrives at the fire a fireman will jump off and hold the end of a connecting hose to attach to a fire hydrant, which may be located at the other end of the block. This helps save time.
Kolchak must exhume a grave in the course of the story, and his voice-over narration explains that he must do this alone because he has nobody he can ask to help do such a thing. However, the brief clip of him standing inside the half-dug grave shows him illuminated by several flashlight beams. The footage is recycled from an earlier episode, "The Zombie".
While this episode supposedly takes place in Chicago, there are palm trees in the background of many of the shots.
It's established throughout that the doppelganger can only kill a victim when they're sleeping. Despite that, it incinerates its third victim as he drives through downtown Chicago. Also, the doppelganger causes fires around Kolchak twice, at Bond's apartment and later at the arcade, when Kolchak is awake.
In the opening scene at the penny arcade, just before Markov is shot, a man in the foreground is "playing" Zoltan, working the controls and moving about on his feet. Zoltan isn't played, the user puts a coin in and Zoltan speaks the user's fortune.
When Mrs. Sherman is walking her dog down the hallway, someone's arm is briefly visible on the right side of the frame. This was presumably the dog handler encouraging the dog to bark.