 Leslie BanksBob Lawrence | Bob Lawrence |
 Edna BestJill Lawrence | Jill Lawrence |
 Peter LorreAbbott | Abbott |
 Frank VosperRamon Levine | Ramon Levine |
 Hugh WakefieldClive | Clive |
 Nova PilbeamBetty Lawrence | Betty Lawrence |
 Pierre FresnayLouis Bernard | Louis Bernard |
| CCicely OatesNurse Agnes | Nurse Agnes |
 D.A. Clarke-SmithBinstead | Binstead |
 George CurzonGibson | Gibson |
 Frank AtkinsonPoliceman Shot Behind Mattress (uncredited) | Policeman Shot Behind Mattress (uncredited) |
| BBetty BaskcombLawrence's Maid (uncredited) | Lawrence's Maid (uncredited) |
| CCot D'OrdanConcierge (uncredited) | Concierge (uncredited) |
| TTony De LungoHotel Manager (uncredited) | Hotel Manager (uncredited) |
 Clare GreetMrs. Brockett (uncredited) | Mrs. Brockett (uncredited) |
| PPat HaganPoliceman at Siege (uncredited) | Policeman at Siege (uncredited) |
 Joan HarrisonSecretary (uncredited) | Secretary (uncredited) |
| EEdward A. Hill-MitchelsonMinor Role (uncredited) | Minor Role (uncredited) |
 Alfred HitchcockMan in Raincoat Passing Bus (uncredited) | Man in Raincoat Passing Bus (uncredited) |
| JJames KnightPolice Inspector (uncredited) | Police Inspector (uncredited) |
 Arnold LucyForeign Dignitary - Target of Assassination (uncredited) | Foreign Dignitary - Target of Assassination (uncredited) |
 Andreas MalandrinosPolice Sergeant (uncredited) | Police Sergeant (uncredited) |
 Henry OscarDentist George Barbor (uncredited) | Dentist George Barbor (uncredited) |
 Charles PatonShopkeeper (uncredited) | Shopkeeper (uncredited) |
 Frederick PiperPoliceman with Rifle (uncredited) | Policeman with Rifle (uncredited) |
| HH.G. StokerPolice Chief at Siege (uncredited) | Police Chief at Siege (uncredited) |
| RRobert Brooks TurnerPoliceman (uncredited) | Policeman (uncredited) |
| JJack Vyvyan BakerPoliceman Shot at Front Door (uncredited) | Policeman Shot at Front Door (uncredited) |
| PPercy WalshDetective Inspector (uncredited) | Detective Inspector (uncredited) |
| HHal WaltersPostman (uncredited) | Postman (uncredited) |
