I am lately taken with the identical twin brother actors William and John Hudson, who did bit roles in a lot of things, but leads in Fifties horror such as The Man Who Turned to Stone (William) and The Screaming Skull (John). There are not many pairs of twin actors, and the Hudsons worked together once in an episode of Adam-12 that utilized their identicality in a mistaken identity plot.

William Hudson, perhaps discouraged by a career that never really took off, drank himself to death by age 55, and I notice that John stopped appearing on screen that same year, 1974. I imagine those facts might be related.

The Screaming Skull, by the way, has an undeservedly poor reputation (3.9 at the IMDB!). Although the gaslighting plot is nothing new, the direction by actor and first-time helmer Alex Nicol is stylish (and abetted by excellent cinematography by Floyd Crosby). Touches of class include the location filming at the Huntington Hartford Estate, and the Mercedes gullwing that John Hudson gets to pilot.