as Professor Marcus

as Claude, alias 'Major Courtney'

as Louis, alias 'Mr. Harvey'

as Harry, alias 'Mr. Robinson'

as 'One-Round', alias 'Mr. Lawson'

as Mrs. Wilberforce

as The Superintendent

as The Sergeant

as The Barrow Boy

as Large Lady (uncredited)

as Hypatia (uncredited)

as Cab Driver (uncredited)

as Burglar (uncredited)

as Parcels Clerk (uncredited)

as Junk Man (uncredited)

as Miss Pringle (uncredited)

as Security Van Driver (uncredited)

as Station Master (uncredited)

as Security Guard (uncredited)

as Second Cab Driver (uncredited)

as Lettice (uncredited)

as Detective (uncredited)

as (uncredited)

as Constable (uncredited)

as Radio Car Policeman (uncredited)

as Nervous Man (uncredited)

as Pavement Artist (uncredited)

as Detective at Parcels Office (uncredited)

as Policeman (uncredited)

as