| Marlon Brando (Ogden Mears) | Sophia Loren (Natascha) | Sydney Chaplin (Harvey) |
| Tippi Hedren (Martha) | Patrick Cargill (Hudson) | Michael Medwin (John Felix) |
| Oliver Johnston (Clark) | John Paul (The Captain) | Angela Scoular (The Society Girl) |
| Margaret Rutherford (Miss Gaulswallow) | Peter Bartlett (Steward) | Bill Nagy (Crawford) |
| Dilys Laye (Saleswoman) | Angela Pringle (Baroness) | Jenny Bridges (Countess) |
| Arthur Gross (Immigration officer) | Balbina (French maid) | Anthony Chinn (Hawaiian (as Anthony Chin)) |
| Jose Sukhum Boonlve (Hawaiian) | Geraldine Chaplin (Girl at dance) | Janine Hill (Girl #2 at dance) |
| Burnell Tucker (Hotel receptionist) | Leonard Trolley (Purser) | Len Lowe (Electrician) |
| Francis Dux (Head waiter) | Cecil Cheng (Taxi driver) | Ronald Rubin (American sailor) |
| Michael Spice (American sailor) | Ray Barlow (American sailor (as Ray Marlowe)) | Josephine Chaplin (Young girl) |