Actor Michael Rennie died on this day. (08/25/1909 – 06/10/1971) Age 61. He was in the only two-part episode “The Keeper – Part 1” and “The Keeper – Part 2” in 1966. He, of course was the titular character.
Note: He is also famous as Klatu in “The Day the Earth Stood Still” and as Harry Lime in the TV series “The Third Man” (where Jonathan Harris was his co-star).