Starring: Robert Conrad, Dick Cangey, Ross Martin, Whitey Hughes
The Night of the Tartar - S2-E19
Revealing mistake: When West opens the wall safe in the personal train, there is no locking mechanism shown on the opened door. Without this, the door of the safe could just be opened without rotating the combination lock on the outside. (00:01:50)
The Night of the Avaricious Actuary - S4-E11
Continuity mistake: The letter from the Cyclops Insurance Company that Gordon pulls out of his pocket is folded, wrinkled, and well-worn. In the close up of the same letter West reads, the letter is white, pristine, and not wrinkled or folded.
Trivia: Due to the rigorous stunts he performed, actor Robert Conrad would often rip out the seat of his already too tight pants.