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Basil Rathbone
Sherlock Holmes
Nigel Bruce
Doctor Watson
Evelyn Ankers
Kitty
Reginald Denny
Sir Evan Barham
Thomas Gomez
R.F. Meade
Henry Daniell
Sir Anthony Lloyd
Montagu Love
General Jerome Lawford
Olaf Hytten
Admiral Sir John Fabian Prentiss
Leyland Hodgson
Captain Roland Shore
Mary Gordon
Mrs. Hudson
Hillary Brooke
Jill Grandis
Harry Cording
Camberwell
Herbert Evans
Smithson - Barham's Butler (uncredited)
Fred Graham
Meade's Henchman (uncredited)
Gavin Muir
BBC Radio Announcer (voice) (uncredited)
