 Judy HollidayNina Chapman Tracey | Nina Chapman Tracey |
 Jack LemmonRobert Tracey | Robert Tracey |
 Jack CarsonCharlie Nelson | Charlie Nelson |
 Kim NovakJanis | Janis |
 Luella GearMrs. Edith Chapman | Mrs. Edith Chapman |
 Donald RandolphDr. Van Kessel | Dr. Van Kessel |
 Donald CurtisRick Vidal | Rick Vidal |
| SShirlee AllardSecretary (uncredited) | Secretary (uncredited) |
| LLeon AltonNightclub Patron (uncredited) | Nightclub Patron (uncredited) |
 Merry AndersMarsha (uncredited) | Marsha (uncredited) |
| MMylee AndreasonDance Teacher (uncredited) | Dance Teacher (uncredited) |
| FFrank ArnoldArt Teacher (uncredited) | Art Teacher (uncredited) |
 Fay BakerNurse Serena (uncredited) | Nurse Serena (uncredited) |
 Eugene BordenTeddy - Maitre d' (uncredited) | Teddy - Maitre d' (uncredited) |
| PPaul BradleyNightclub Patron (uncredited) | Nightclub Patron (uncredited) |
| SSue CarltonMinor Role (uncredited) | Minor Role (uncredited) |
 Harry CheshireNina's Divorce Lawyer (uncredited) | Nina's Divorce Lawyer (uncredited) |
 Sayre DearingNightclub Patron (uncredited) | Nightclub Patron (uncredited) |
 Jimmie DoddCab Driver (uncredited) | Cab Driver (uncredited) |
| DDan DowlingNightclub Patron (uncredited) | Nightclub Patron (uncredited) |
| CCharles FergusonWaiter (uncredited) | Waiter (uncredited) |
 Bess FlowersNightclub Patron / Woman at Airport (uncredited) | Nightclub Patron / Woman at Airport (uncredited) |
 Arny FreemanLanguage Teacher (uncredited) | Language Teacher (uncredited) |
| RRudy GermaneNightclub Patron (uncredited) | Nightclub Patron (uncredited) |
| KKenneth GibsonNightclub Patron (uncredited) | Nightclub Patron (uncredited) |
| JJames GonzalezStudio Executive (uncredited) | Studio Executive (uncredited) |
| DDick GordonTechnician (uncredited) | Technician (uncredited) |
| GGeraldine HallNina's Secretary (uncredited) | Nina's Secretary (uncredited) |
| SSam HarrisNightclub Patron / Man at Airport (uncredited) | Nightclub Patron / Man at Airport (uncredited) |
 Jerry HausnerSteve (uncredited) | Steve (uncredited) |
