 Gregory PeckHarry Street | Harry Street |
 Susan HaywardHelen Street | Helen Street |
 Ava GardnerCynthia Green | Cynthia Green |
 Hildegard KnefCountess Liz | Countess Liz |
 Leo G. CarrollUncle Bill Swift | Uncle Bill Swift |
 Torin ThatcherJohnson | Johnson |
| AAva NorringBeatrice | Beatrice |
 Helene StanleyConnie | Connie |
 Marcel DalioEmile | Emile |
 Vicente GómezGitarrist | Gitarrist |
 Richard AllanSpanish Dancer | Spanish Dancer |
 Leonard CareyDr. Edmund Simmons (uncredited) | Dr. Edmund Simmons (uncredited) |
| AAmanda AmbrosePianist (uncredited) | Pianist (uncredited) |
 Sugarfoot Anderson(uncredited) | (uncredited) |
 Salvador BaguezStretcher Bearer (uncredited) | Stretcher Bearer (uncredited) |
 Charles BatesHarry at Seventeen (uncredited) | Harry at Seventeen (uncredited) |
| NNina BorgetGirl (uncredited) | Girl (uncredited) |
| MMaurice BrierreWaiter (uncredited) | Waiter (uncredited) |
| AArthur BrunnerAccordion Player (uncredited) | Accordion Player (uncredited) |
| CCharles BrunnerGuest (uncredited) | Guest (uncredited) |
| EErnest BrunnerAccordion Player (uncredited) | Accordion Player (uncredited) |
 Benny CarterAlto Sax Soloist (uncredited) | Alto Sax Soloist (uncredited) |
| MMonique ChantalGeorgette (uncredited) | Georgette (uncredited) |
 André CharlotGuest (uncredited) | Guest (uncredited) |
 Edward ColmansClerk (uncredited) | Clerk (uncredited) |
 George DavisServant (uncredited) | Servant (uncredited) |
| JJames DavisAbdulla (uncredited) | Abdulla (uncredited) |
| AAmapola Del VandoSpanish Ambulance Driver (uncredited) | Spanish Ambulance Driver (uncredited) |
| VVictor DesnyWaiter (uncredited) | Waiter (uncredited) |
| JJohn DodsworthCompton - Cynthia's First Man (uncredited) | Compton - Cynthia's First Man (uncredited) |
