| Jack Lemmon (Bud Baxter) |
| Shirley MacLaine (Fran Kubelik) |
| Fred MacMurray (Jeff Sheldrake) |
| Ray Walston (Dobisch) |
| David Lewis (Kirkeby) |
| Jack Kruschen (Le Dr Dreyfus) |
| Joan Shawlee (Sylvia) |
| Edie Adams (Mlle Olsen) |
| Hope Holiday (Margie MacDougall) |
| Johnny Seven (Karl Matuschka) |
| Noami Stevens (Mme Dreyfus) |
| Frances Weintraub Lax (Mme Lieberman) |
| Joyce Jameson (La blonde) |
| Willard Waterman (Vanderhof) |
| David White (Eichelberger) |
| Benny Burt (Le maître d'hôtel) |
| Dorothy Abbott |