San Quentin

Lawrence Tierney

Jim Roland

Barton MacLane

Nick Taylor

Marian Carr

Betty Richards

Harry Shannon

Warden Kelly

Carol Forman

Ruthie

Joe Devlin

'Broadway' Johnson

Tom Keene

Hal Schaeffer

Tony Barrett

Steve Marlowe

Lee Bonnell

Joe Carzoni

Robert Clarke

Tommy North

Raymond Burr

Jeff Torrance

Lewis E. Lawes

Prologue Speaker

Robert Dudley

Fuller (uncredited)

Selmer Jackson

Rev. Eckles (uncredited)

Byron Foulger

Dixon (uncredited)

Larry Nunn

Danny (uncredited)

Harry Tyler

Pete Moley (uncredited)

Herbert Rawlinson

Dr. Stanton (uncredited)