The Night of the Winged Terror: Part 1 - S4-E15
Continuity mistake: Footage of the train rolling into town shows two different locomotives.
The Night of the Winged Terror: Part 1 - S4-E15
Continuity mistake: A townsman in a brown poncho and sombrero almost walks out of the scene in the long shot, but is shown entering the scene and passing Laurette in the close up shot.
The Night of the Winged Terror: Part 1 - S4-E15
Continuity mistake: West's hands change positions as he speaks with Frank Harper. In the front shots West's hands are up, but from his back West's hands are down.
The Night of the Winged Terror: Part 1 - S4-E15
Continuity mistake: The piñata lands and explodes at Harper's left, but when he gets up, the piñata's exploded remains are several feet to his right.
The Night of the Winged Terror: Part 1 - S4-E15
Continuity mistake: The exploding piñatas are blown to pieces in the attacks on West and Harper, but later Harper picks up one of the piñatas, which is intact.
The Night of the Winged Terror: Part 1 - S4-E15
Revealing mistake: West's fist does not connect with the face of one of the Brass brothers he punches.
The Night of Miguelito's Revenge - S4-E12
Visible crew/equipment: The wire suspending Pike's flying butterfly bomb is visible as it flies around the circus tent.
The Night of Miguelito's Revenge - S4-E12
Revealing mistake: Dr. Loveless' body flies out of the cannon before the cannon's blast propels him out the barrel.
The Night of Fire and Brimstone - S4-E9
Visible crew/equipment: The camera's shadow is visible on the wall map as Captain Butler speaks with West.
The Night of Miguelito's Revenge - S4-E12
Revealing mistake: Stock footage of West and Gordon's train show it on a siding with no green foliage near it, but when West enters his private car, green bushes are seen very close to the train through the train car's open door.
The Night of Miguelito's Revenge - S4-E12
Continuity mistake: Loveless' goon holds his gun at a high angle to Pike's head, but the next shot shows the gun at a much lower angle.
The Night of Miguelito's Revenge - S4-E12
Continuity mistake: The pencil on Barlow's desk disappears in the view over Barlow's right shoulder, then appears when seen over Pike's left shoulder as the scene switches back and forth.
The Night of Miguelito's Revenge - S4-E12
Character mistake: The store window's sign says, "Denver Mercatile" rather than "Mercantile."
The Night of Miguelito's Revenge - S4-E12
Continuity mistake: A man and woman walking in the background as Pike is being gassed are about to cross the street at a corner. As Pike is being lifted into the carriage, the same couple are just about to approach the same corner.
The Night of Miguelito's Revenge - S4-E12
Revealing mistake: The steam-driven robot controlled by Dr. Loveless blinks as he is strangling West.
The Night of Fire and Brimstone - S4-E9
Factual error: West fires seven rounds from his six-shooter without reloading to cover Gordon's escape.
The Night of Fire and Brimstone - S4-E9
Continuity mistake: After West shoots the mine wall with the grappling arrow, the line connected to the arrow is taut. The quick shot back to West shows the line loose with lots of slack, then cuts back to the arrow and the line is taut.
The Night of the Fugitives - S4-E7
Continuity mistake: West uses a chandelier to knock down a thug wearing a brown vest against the opposite wall in the Saloon. When West gets up, the thug is now lying next to West and wears a green vest rather than brown, and is also closer to the Saloon's bar.
The Night of the Fugitives - S4-E7
Continuity mistake: David Desmond's cigar instantly changes from being elevated in the facial close ups to being at a lower angle in the shots from behind his right shoulder.
The Night of the Fugitives - S4-E7
Continuity mistake: Monk sees West in a mirror escaping from behind the hotel's door. The immediate next shot shows West escaping again.