John Cater

as Man in Crowd (uncredited)

as Superintendent Waverley

as Thomas

as Siddie's Husband

as Superintendent Waverly

as Arnold Pepperell

as Professor Hieronymous Grost

as Maurice

as Efim

as Psychiatrist

as Bert

as Meadows

as Restorer (Robertson)

as Professor Krimpton

as Pollux

as 1st Gentleman

as Blackall

as Murchison

as Rockhill

as Bert