Character mistake: Season 4, Ep. 29, "Bald-faced Boy": Uncle Del forgets his nephew's name during the argument in the cabin. He calls Brett "Mike," which is neither the actor's name nor that of any of Del's other relatives. (01:11:00)
The Virginian (1962)
1 character mistake in show generally - chronological order
Starring: Lee J. Cobb, Doug McClure, James Drury, Sara Lane
Genres: Western
Ride a Cock-Horse to Laramie Cross - S4-E23
Continuity mistake: The dye job on young Clint Howard's hair is inconsistent from scene to scene. It's dark black at the start, but pales to a shade much closer to his natural blond color in many shots later on. His brown make-up (a laughable effort to make a blue-eyed Anglo kid look Hispanic) also varies, and disappears entirely in some of the covered wagon scenes.