I borrowed season one of the 1950's Superman TV series from the library the other day. While watcyhing the episode "Runaway Robot" I spotted a familiar face. One of the crooks was played by Russell Johnson who of course played Professor Roy Hinkley on Gilligan's Island!

Yeah. He popped up a couple of times in "The Twilight Zone"

He was a good generic actor.

He was a good generic actor.
I agree!