I recall an episode of Twilight Zone in which he played a college professor who taught history , and was particularly knowledgeable about the Civil War . He was in love with a younger woman whose father was suspicious of him . The father discovers that he ( McCarthy ) was actually an officer in the Cival War and never aged . In the end I think the father shot him and while he was dying he withered away into a 100+ year old man .
I remember that Twilight Zone episode featuring Kevin McCarthy. McCarthy admitted to the girl’s father that he, McCarthy, was old enough to have known Plato personally!
The girl’s father saw a picture of McCarthy in his Union Civil War officer’s uniform.
Also, it wasn’t the father who shot McCarthy....it was one of McCarthy’s former wives, who was a very elderly woman. After being shot, McCarthy rapidly ages as he lays on the floor dying, and eventually turns to dust.
I don’t recall ever seeing that episode. Now, I’ll have to stay home, New Year’s Eve, and watch the Sci Fi Channel’s T-Zone marathon.