Obsada:

• Basil Rathbone Sherlock Holmes
• Nigel Bruce Dr. John H. Watson
• Gerald Hamer Alistair Ramson
• Paul Cavanagh Lord William Penrose
• Arthur Hohl Emile Journet
• Kay Harding Marie Journet
• Miles Mander Judge Brisson
• David Clyde Sgt. Thompson
• Ian Wolfe Drake
• Victoria Horne Nora
• Harry Allen Bill Taylor
• Gertrude Astor Lady Lillian Gentry Penrose
• Ted Billings Villager in Pub
• Bill Cartledge Hotel Bellhop
• Al Ferguson Attendant
• Clyde Fillmore Inspector
• Charles Francis Sir John
• Olaf Hytten Day Desk Clerk
• George Kirby Father Pierre
• Charles Knight Assistant Inspector
• Norbert Muller Page-boy
• Pietro Sosso Andy Trent
• Tony Travers Muzyk
• Eric Wilton Evening Desk Clerk