Richard Gordon
(Ober-)Inspektor Elk (German version) /(Chief) Inspector Hedge (English version)
James
Ella Bennet
Ray Bennet
John Bennet
Joshua Broad
Philo Johnson
Sir Archibald
Lolita
Ezra Maitland
Sergeant Balder (German version) /Sergeant Barclay (English version)
Everett
Mills
Lady Maggie Farnsworth (German version) /Lady Aubrid Farnsworth (English version)
Lew Brady
Inspector Ghent (voice) (uncredited)
Inspektor Genter (German version) /Inspector Higgins (English version) (uncredited)
Voice of Newsreader on Radio (voice) (uncredited)
Sgt. Rubby (Sir Archibalds Vorzimmer-Sergeant) (uncredited)
Lord Charles Farnsworth (uncredited)
(uncredited)