| Burt Lancaster (Mel Bakersfeld) |
| Dean Martin (Vernon Demerest) |
| Jean Seberg (Tanya Livingstone) |
| Jacqueline Bisset (Gwen Meighen) |
| George Kennedy (Joe Patroni) |
| Helen Hayes (Ada Quonsett) |
| Maureen Stapleton (Inez Guerrero) |
| Van Heflin (D. O. Guerrero) |
| Barry Nelson (Le lt Harris) |
| Dana Wynter (Cindy Bakersfeld) |
| Lloyd Nolan (Harry Standish) |
| Barbara Hale (Sarah Demerest) |
| Gary Collins (Cy Jordon) |
| John Findlater (Peter Coakley) |
| Jessie Royce Landis (Harriet du Barry Mossman) |
| Larry Gates (Le commissaire Ackerman) |
| Peter Turgeon (Marcus Rathbone) |
| Whitner Bissel (M. Davidson) |
| Virginia Grey (Mme Schultz) |
| Eileen Wesson (Judy) |
| Paul Picerni (Le Dr Compagno) |