First he seduced her. Then he made her a star. He was Johnny Hyde, 52-year-old agent, friend, lover. She was an unemployed starlet — destined to be America's greatest sex goddess. Theirs was a sizzling romance — torrid, touching, tragic.
| Actor | Role |
|---|---|
 Lloyd BridgesJohnny Hyde | Johnny Hyde |
 Constance ForslundMarilyn Monroe | Marilyn Monroe |
 Norman FellPat Toledo | Pat Toledo |
 Vic TaybackHarry Cohn | Harry Cohn |
 Michael LernerJack Warner | Jack Warner |
 John MarleyJoe Schenck | Joe Schenck |
| RRichard SeerNorman | Norman |
 Lee WallaceSamuel Goldwyn | Samuel Goldwyn |
| WWilliam FrankfatherJohn Huston | John Huston |
 Philip SterlingDr. Freed | Dr. Freed |
 Sondra BlakeMrs. Baker | Mrs. Baker |
 Barney MartinEddie Mannix | Eddie Mannix |
 Michael StrongSol Silverman | Sol Silverman |
 Peter MaloneyDarryl Zanuck | Darryl Zanuck |
 Stephen Keep MillsDore Schary | Dore Schary |
 Kathleen KingMargot Revere | Margot Revere |
 Lee WilkofPaddy | Paddy |
 Fred SadoffDr. Benson | Dr. Benson |
| MMary GregoryHospital Matron | Hospital Matron |
| BBob HardersUCLA Student | UCLA Student |
 John DennisAndrews | Andrews |
| MMichael PrinceDavid | David |
| CClyde VenturaDerek | Derek |
 Don DiamondLacey's Captain | Lacey's Captain |
| AAmelia HaasNurse | Nurse |
 Angela AamesBlonde at Pool | Blonde at Pool |
 Peggy Ann GarnerStepmother (uncredited) | Stepmother (uncredited) |