Jack Nicholson

Jimmy Wallace

Harry Lauter

Police Lt. Porter

Brett Halsey

Manny Cole

Lynn Cartwright

Julie

Smoki Whitfield

Sam

Barbara Knudson

Mrs. Maxton

Ed Nelson

Rick Connor

Herb Vigran

John Lawson - Gambelli's Lawyer (uncredited)

Frank Richards

Pete Gambelli

Mitzi McCall

Evelyn

Claude Stroud

Mr. Werner (uncredited)

Bill Erwin

Mr. Wallace

Roger Corman

Joe - TV Truck Man (uncredited)

Leo Gordon

Man in Crowd (uncredited)

Bruno VeSota

Man in Crowd (uncredited)