Jim Stark

James Dean

Judy

Natalie Wood

John "Plato" Crawford

Sal Mineo

Frank Stark

Jim Backus

Mrs. Stark

Ann Doran

Madre di Judy

Rochelle Hudson

Buzz Gunderson

Corey Allen

Judy's Father

William Hopper

Judy's Mother

Rochelle Hudson

Mrs. Stark

Virginia Brissac

Goon

Dennis Hopper

Ray

Edward Platt

Chick

Nick Adams

Cookie

Jack Simmons

Mil

Steffi Sidney

Maid

Marietta Canty

Jim's Grandmother

Virginia Brissac

Moose

Jack Grinnage

Helen

Beverly Long

Dr. Minton

Ian Wolfe

Crunch

Frank Mazzola

Gene

Robert Foulk

Harry

Tom Bernard

Cliff

Clifford Morris

Harry

Tommy Bernard

Beau

Jimmy Baird

Planetarium guide (uncredited)

Dick Wessel

Sergeant

Nelson Leigh

Desk sergeant No. 1 (uncredited)

Nelson Leigh

Nurse

Dorothy Abbott

Woman Officer

Louise Lane

Officer

House Peters

Attendant

Gus Schilling

Monitor

Bruce Noonan

Old Lady Teacher

Almira Sessions

Hoodlum

Peter Miller

Desk Sergeant

Paul Bryar

Police Chief

Paul Birch

Moose's Father Ed

Robert B. Williams

Crunch's Father

David McMahon

Undetermined Role

Harold Bostwick

Police Officer

John Close

Police Desk Sergeant

Chuck Hamilton

Beau

Jimmie Baird

Officer

House Peters, Jr.

Man in last shot

Nicholas Ray

Director

Nicholas Ray