크레딧 출연 배질 래스본 Sherlock Holmes Nigel Bruce Doctor Watson Marjorie Lord Nancy Partridge Henry Daniell William Easter George Zucco Heinrich Hinckel aka Richard Stanley John Archer Naval Lt. Pete Merriam Gavin Muir Mr. Lang, government agent Edmund MacDonald Detective Lt. Grogan Don Terry Howe Mary Gordon Mrs. Hudson Bradley Page Cady Clarence Muse George Mary Forbes Mrs. Pettibone Holmes Herbert Mr. Ahrens Thurston Hall Sen. Henry Babcock Ian Wolfe Antiques Store Sales Clerk John Burton Army Inspector (uncredited) Gerald Hamer Alfred Pettibone Gilbert Emery Sir Henry Marchmont (uncredited) Margaret Seddon Miss Pringle (uncredited) Mary Field Party Pianist (uncredited) Colin Kenny Hotel Doorman (uncredited) Caroline Frances Cooke Mrs. Ruxton 스텝 Bertram Millhauser Writing Roy William Neill Directing Russell A. Gausman Art William Tummel Directing Bertram Millhauser Writing Lester White Camera Otto Ludwig Editing Howard Benedict Production Frank Skinner Sound Bertram Millhauser Writing Jack Otterson Art Lynn Riggs Writing Roy William Neill Production Vera West Costume & Make-Up 아서 코난 도일 Writing