J. Parnell Thomas

Self

Albert Maltz

Self

Lester Cole

Self

Samuel Ornitz

Self

Adrian Scott

Self

Alvah Bessie

Self

Edward Dmytryk

Self

Ring Lardner, Jr.

Self

John Howard Lawson

Self

Herbert J. Biberman

Self

Dalton Trumbo

Self

Lauren Bacall

Self (archive footage) (uncredited)

Richard Conte

Self (archive footage) (uncredited)

Richard Nixon

Self (archive footage) (uncredited)

Humphrey Bogart

John Berry