Sherlock Holmes in Washington

Gavin Muir as Mr. Lang, government agent Don Terry as Howe Bradley Page as Cady Mary Forbes as Mrs. Pettibone Thurston Hall as Sen. Henry Babcock Ian Wolfe as Antiques Store Sales Clerk Mary Gordon as Mrs. Hudson Holmes Herbert as Mr. Ahrens Nigel Bruce as Doctor Watson Marjorie Lord as Nancy Partridge Henry Daniell as William Easter John Archer as Naval Lt. Pete Merriam Margaret Seddon as Miss Pringle (uncredited) Colin Kenny as Hotel Doorman (uncredited) Edmund MacDonald as Detective Lt. Grogan Clarence Muse as George Gerald Hamer as Alfred Pettibone Gilbert Emery as Sir Henry Marchmont (uncredited) Caroline Frances Cooke as Mrs. Ruxton Basil Rathbone as Sherlock Holmes George Zucco as Heinrich Hinckel aka Richard Stanley

Frank Skinner Music Arthur Conan Doyle Characters Roy William Neill Director, Producer