 Melvyn DouglasJoel Sloane | Joel Sloane |
 Florence RiceGarda Sloane | Garda Sloane |
 Claire DoddJulia Thorne | Julia Thorne |
 Shepperd StrudwickNed Morgan | Ned Morgan |
 Louis CalhernElias Z. Bannerman | Elias Z. Bannerman |
 Nat PendletonPaul Terison | Paul Terison |
 Douglass DumbrilleArnold Stamper (as Douglas Dumbrille) | Arnold Stamper (as Douglas Dumbrille) |
 Mary HowardLeah Brockler | Leah Brockler |
 George ZuccoOtto Brockler | Otto Brockler |
 Minor WatsonSteve Langner | Steve Langner |
 Donald DouglasLt. James Flanner | Lt. James Flanner |
 Dwight FryeSidney Z. Wheeler | Sidney Z. Wheeler |
 Thurston HallDist. Atty. MacMillen | Dist. Atty. MacMillen |
 Horace McMahonDanny Scolado (as Horace MacMahon) | Danny Scolado (as Horace MacMahon) |
 Barbara BedfordMacMillen's Secretary (uncredited) | MacMillen's Secretary (uncredited) |
| JJames B. CarsonSafe Expert (uncredited) | Safe Expert (uncredited) |
 Jack ChefeMaitre d' (uncredited) | Maitre d' (uncredited) |
 Roger ConverseAssistant Dist. Atty. Byers (uncredited) | Assistant Dist. Atty. Byers (uncredited) |
| JJack FossAttendant Bringing Sandwich (uncredited) | Attendant Bringing Sandwich (uncredited) |
 Natalie GarsonMildred, Girl with Sidney (uncredited) | Mildred, Girl with Sidney (uncredited) |
 Chuck HamiltonPolice Detective (uncredited) | Police Detective (uncredited) |
 Edward HearnPoliceman (uncredited) | Policeman (uncredited) |
 Harold MillerAuction Attendee (uncredited) | Auction Attendee (uncredited) |
| EEdmund MortimerRestaurant Patron (uncredited) | Restaurant Patron (uncredited) |
 Wedgwood NowellMan in Victim's House (uncredited) | Man in Victim's House (uncredited) |
 Ronald R. RondellTaxi Driver (uncredited) | Taxi Driver (uncredited) |
| HHenry SylvesterAuctioneer (uncredited) | Auctioneer (uncredited) |
