James Dean

Jim Stark

Natalie Wood

Judy

Sal Mineo

John 'Plato' Crawford

Jim Backus

Frank Stark

Ann Doran

Carol Stark

Corey Allen

Buzz Gunderson

William Hopper

Judy's Father

Rochelle Hudson

Judy's Mother

Dennis Hopper

Goon

Edward Platt

Ray Fremick

Steffi Sidney

Mil

Marietta Canty

Crawford Maid

Virginia Brissac

Jim's Grandmother

Ian Wolfe

Dr. Minton

Robert Foulk

Gene

Nick Adams

Chick

Jack Grinnage

Moose

Almira Sessions

Planetarium Teacher (uncredited)

Paul Birch

Police Lieutenant (uncredited)

Dorothy Abbott

Nurse (uncredited)

Paul Bryar

Desk Sergeant #2 (uncredited)

Chuck Hicks

Ambulance Attendant (uncredited)

Nelson Leigh

Desk Sergeant #1 (uncredited)

David McMahon

Crunch's Father (uncredited)

Peter Miller

Hoodlum (uncredited)

House Peters Jr.

Officer at Police Station (uncredited)

Nicholas Ray

Man in Last Shot (uncredited)

Gus Schilling

Attendant (uncredited)

Bert Stevens

Police Detective (uncredited)

Dick Wessel

Planetarium Guide (uncredited)

Robert B. Williams

Ed (uncredited)

Ralph Moratz

Boy at Planetarium (uncredited)