Career
Platt has made numerous comedic and dramatic appearances on television, most recently as Review Weber in What About Joan? Along with his role as Hoppy on Sanford And Son, Platt has also had guest roles as Doctor Philosophy Newman on The Bob Newhart Show, Max on Alice, Major Ted Spector on M*A*South*H, and Judge Jonathan Stockfish on Evening Shade. As a series regular he played Captain Doug March on the 1978-1979 Columbia Broadcasting System-television sitcom Flying High.
His many movie roles include T.R. Baskin, Nixon, The Cat from Outer Space, and Norma Jean & Marilyn.