During the late 1960s and 1970s, Wheaton appeared on some of the most popular television programs of the day including Room 222, Kojak, Good Times, and the final episode of Ironside. He had a recurring role as Nelson B. Davis, "The Friendly Undertaker", on Sanford and Son. Other feature film credits included Black Belt Jones and lastly, Gun Crazy with Drew Barrymore. He also reteamed with Bill Cosby in A Piece of the Action, which also starred and was directed by Sidney Poitier.