Russell Napier

as Professor Fuller

as Landlord

as Leeds

as Colonel Thompson

as Narrator

as Flag Captain

as Brother Elias

as 2nd Plain Clothes Officer

as Thompson

as Air Vice Marshal (uncredited)

as Superintendent

as Capt. Stanley Lord

as Potter

as Squire Myles

as Inspector Duggan

as Parker

as Banker Green

as Detective Sgt. Bolton

as Inspector Hobson

as Jack Burns

as Sir Henry Dimmock

as Scotland Yard Supt. Davidson

as Inspector Duggan

as Supt. John Harrington

as Raymond Curtis

as Inspector Simmons

as Insp. Durham

as Insp. Treherne

as Inspector Harmer

as Wg. Cmr. Rogers

as Detective at Ann's Apartment (Uncredited)

as Col. Stafford

as Inspector Markham

as Stevens

as Det. Cutler

as Narrator

as Supt. Walshaw

as Sir Harold Plant

as Dr. Green

as Headmaster

as Admiral Habberfield

as Inspector Duggan