Lloyd Bridges as Johnny Hyde

Constance Forslund as Marilyn Monroe

Norman Fell as Pat Toledo

Vic Tayback as Harry Cohn

Michael Lerner as Jack Warner

John Marley as Joe Schenck

Richard Seer as Norman

Lee Wallace as Samuel Goldwyn

William Frankfather as John Huston

Philip Sterling as Dr. Freed

Sondra Blake as Mrs. Baker

Barney Martin as Eddie Mannix

Michael Strong as Sol Silverman

Peter Maloney as Darryl Zanuck

Stephen Keep Mills as Dore Schary

Kathleen King as Margot Revere

Lee Wilkof as Paddy

Fred Sadoff as Dr. Benson

Mary Gregory as Hospital Matron

Bob Harders as UCLA Student

John Dennis as Andrews

Michael Prince as David

Clyde Ventura as Derek

Don Diamond as Lacey's Captain

Amelia Haas as Nurse

Angela Aames as Blonde at Pool

Peggy Ann Garner as Stepmother (uncredited)