 Melvyn DouglasRene Farrand aka Arsene Lupin | Rene Farrand aka Arsene Lupin |
 Virginia BruceLorraine de Grissac | Lorraine de Grissac |
 Warren WilliamSteve Emerson | Steve Emerson |
 John HallidayCount de Grissac | Count de Grissac |
 Nat PendletonJoe Doyle | Joe Doyle |
 Monty WoolleyGeorges Bouchet | Georges Bouchet |
 E. E. CliveAlf | Alf |
 George ZuccoPrefect of Police | Prefect of Police |
 Rollo LloydDuval | Duval |
 Vladimir SokoloffIvan Pavloff | Ivan Pavloff |
 Ian WolfeA. Le Marchand - Detective (as Ien Wulf) | A. Le Marchand - Detective (as Ien Wulf) |
 Tully MarshallMonelle | Monelle |
 Jonathan HaleF.B.I. Special Agent | F.B.I. Special Agent |
 George DavisGuard at Dock (uncredited) | Guard at Dock (uncredited) |
 King BaggotDetective (uncredited) | Detective (uncredited) |
 William BaileyDetective (uncredited) | Detective (uncredited) |
| EEdward BibyParty Guest (uncredited) | Party Guest (uncredited) |
 Sidney BraceySquad Car Driver (uncredited) | Squad Car Driver (uncredited) |
 Egon BrecherVasseur (uncredited) | Vasseur (uncredited) |
 Harvey ClarkHotel Assistant Manager (uncredited) | Hotel Assistant Manager (uncredited) |
 Chester CluteReporter (uncredited) | Reporter (uncredited) |
 Sidney D'AlbrookDetective Alois (uncredited) | Detective Alois (uncredited) |
| FFrank DawsonFrançois - Butler (uncredited) | François - Butler (uncredited) |
| HHelen DicksonWoman Passenger at Dock (uncredited) | Woman Passenger at Dock (uncredited) |
 George DouglasGendarme (uncredited) | Gendarme (uncredited) |
 Jay EatonMan in Hotel Lobby (uncredited) | Man in Hotel Lobby (uncredited) |
 Stanley FieldsAndré - Horse Groom (uncredited) | André - Horse Groom (uncredited) |
 Christian J. FrankDetective (uncredited) | Detective (uncredited) |
 Otto FriesTruck Driver (uncredited) | Truck Driver (uncredited) |
 John Harmon'Butch' Harron - Gang Leader (uncredited) | 'Butch' Harron - Gang Leader (uncredited) |
