William Holden
Al Walker

Nina Foch
Betty

Lee J. Cobb
Dr. Andrew Collins

Adele Jergens
Laura Stevens

Stephen Dunne
Owen Talbot

Lois Maxwell
Ruth Collins

Berry Kroeger
Mike

Steven Geray
Prof. Fred Linder

Wilton Graff
Frank Stevens

Robert Osterloh
Pete

Kathryn Card
Nora

Charles Cane
Sheriff (uncredited)

Bill Cartledge
Arrested Man Leaving Wagon (uncredited)

Tom Coleman
Detective (uncredited)

G. Pat Collins
Al's Father (uncredited)

Ellen Corby
Agnes (uncredited)

Lester Dorr
First Man in Police Line-Up (uncredited)

Edward Earle
McCoy (uncredited)

Charles Ferguson
Detective (uncredited)

Jack Gordon
Tough Man in Line-up (uncredited)

Sam Harris
Old Man on Bus (uncredited)

Harry Harvey Jr.
John Larrapoe (uncredited)

Robert Hyatt
Bobby Collins (uncredited)

Selmer Jackson
Warden Benson (uncredited)

Paul Kruger
Policeman in Hallway at Headquarters (uncredited)

Jimmy Lloyd
Herb Fuller (uncredited)

Merrill McCormick
Bus Passenger (uncredited)

Pat McGeehan
Commentator (voice) (uncredited)

John McKee
Policeman Departing HQ (uncredited)

Edwin Mills
Young Prisoner (uncredited)

Gay Nelson
Starry-Eyed Girl on Bus (uncredited)

Cosmo Sardo
Card Player at Bar (uncredited)

Charles Sherlock
Man in Hallway at Police Headquarters (uncredited)

Hermine Sterler
Mrs. Linder (uncredited)

Bert Stevens
State Trooper (uncredited)

Brick Sullivan
Policeman Departing HQ (uncredited)

Phil Tully
Bill - State Policeman at Roadblock (uncredited)

Chalky Williams
Policeman Departing HQ (uncredited)

Robert B. Williams
Williams (uncredited)