Do you know his voice or his face?
Hans Conried (April 15, 1917 – January 5, 1982).
Hans Georg Conried Jr. was an American actor, comedian, and voice actor. Conried is known for providing the voices of Walt Disney's George Darling and Captain Hook in Peter Pan (1953), Snidely Whiplash in Jay Ward's Dudley Do-Right cartoons, Professor Waldo P. Wigglesworth in Ward's Hoppity Hooper cartoons, and Professor Kropotkin on the radio and film versions of My Friend Irma. He also appeared as Uncle Tonoose on Danny Thomas' sitcom Make Room for Daddy, and in multiple roles on I Love Lucy.
Conried guests on The Donna Reed Show in “It’s the Principle of the Thing” (Season 1, Episode 18).