John Banner (January 28, 1910 - January 28, 1973).
John Banner, originally named Johann Banner, was an actor from Austria who became an American citizen. He is most famous for portraying Sergeant Schultz in the sitcom Hogan's Heroes (1965–1971). In the show, Schultz often stumbled upon signs that the prisoners in his camp were plotting chaos, but he regularly pretended not to notice, using the famous line, "I see nothing! I hear nothing! I know nothing!"
He makes a guest appearance on The Donna Reed Show in the episode "Moon Shot" (Season 6, Episode 14).