Richard Schaal in The Cube
Richard Schaal (1928-2014) was an actor and improvisational comedian who starred in The Cube, as "The Man in The Cube."
Schaal was a key member of the Second City comedy troupe in Chicago in the 1960s. His film work includes appearances in Slaughterhouse-Five, Once Bitten, and The Russians Are Coming, the Russians Are Coming (with Alan Arkin, Carl Reiner, and Jonathan Winters). Television includes guest roles on I Dream of Jeannie, The Rockford Files, Barney Miller, and The Mary Tyler Moore Show. He was formerly married to Valerie Harper.