 Bing CrosbyDr. Bill Remsen | Dr. Bill Remsen |
 Mary CarlisleJudy Marlowe | Judy Marlowe |
 Beatrice LillieMrs. Lorelei Dodge-Blodgett | Mrs. Lorelei Dodge-Blodgett |
 Andy DevineOfficer Lawrence O'Roon | Officer Lawrence O'Roon |
 Rufe DavisAl (Zookeeper) | Al (Zookeeper) |
 Laura Hope CrewsMrs. Minerva Twombling | Mrs. Minerva Twombling |
 Fred KeatingChris LeRoy | Chris LeRoy |
 John HamiltonInsp. Bryce | Insp. Bryce |
 Sterling HollowayLuke (Ice-Cream Man) | Luke (Ice-Cream Man) |
 Henry WadsworthOtis Eaton (The Drunk) | Otis Eaton (The Drunk) |
 Franklin PangbornMr. Stenchfield (Store Clerk) | Mr. Stenchfield (Store Clerk) |
 Harold MinjirMr. Coldwater | Mr. Coldwater |
 William AustinMr. Martingale | Mr. Martingale |
 Gino CorradoCazzatta | Cazzatta |
 Harry StubbsPolice Captain | Police Captain |
 Frank ElliottLorelei's Butler | Lorelei's Butler |
 Charles R. MooreTooter, the Chauffeur | Tooter, the Chauffeur |
| LLouis ArmstrongTrumpet Player | Trumpet Player |
| CCharlene ArnoldDancer (uncredited) | Dancer (uncredited) |
| JJoanne ArnoldDancer (uncredited) | Dancer (uncredited) |
 Dolores CaseyNurse (uncredited) | Nurse (uncredited) |
| DDesmond GallagherStage Manager (uncredited) | Stage Manager (uncredited) |
 Alphonse MartellMarvelous Marko (uncredited) | Marvelous Marko (uncredited) |
| AAllen MathewsLeRoy's Henchman (uncredited) | LeRoy's Henchman (uncredited) |
| GGretchen McCarthyDancer (uncredited) | Dancer (uncredited) |
 Emory ParnellSgt. Olson (uncredited) | Sgt. Olson (uncredited) |
| RRobert TaylorBand Member (uncredited) | Band Member (uncredited) |
