Marlon Brando

Ken

Teresa Wright

Ellen

Everett Sloane

Dr. Brock

Jack Webb

Norm

Richard Erdman

Leo

Virginia Farmer

Nurse Robbins

Dorothy Tree

Ellen's Mother

Howard St. John

Ellen's Father

Nita Hunter

Dolores

Cliff Clark

Dr. Kameran

Ray Teal

Man at Bar

Sayre Dearing

Bar Patron (uncredited)

John Hamilton

Justice of the Peace (uncredited)

DeForest Kelley

Dr. Sherman (uncredited)

William H. O'Brien

Nightclub Waiter (uncredited)

Frank O'Connor

Hospital Orderly (uncredited)

Polly Bergen

Nightclub Singer (Uncredited)