Robert Cornthwaite first got hooked on acting at age 13, when he was forced to play a one-line part in an eighth grade play. He did his first work with professionals five years later, in a 1935 production of "Twelfth Night" on the Reed College campus in Portland. He worked in radio in Southern California before he was inducted into the Air Force during World War II (a four-year hitch). Returning to Hollywood after the War, Cornthwaite went back into radio and then began working as a character man in features and TV. He prefers theater, which he feels is "far more liberating for the actor" than film.