Joachim Fuchsberger
Richard Gordon
Acting
Siegfried Lowitz
(Ober-)Inspektor Elk (German version) /(Chief) Inspector Hedge (English version)
Acting
Eddi Arent
James
Acting
Elfie von Kalckreuth
Ella Bennet
Acting
Walter Wilz
Ray Bennet
Acting
Carl Lange
John Bennet
Acting
Dieter Eppler
Joshua Broad
Acting
Jochen Brockmann
Philo Johnson
Acting
Ernst Fritz Fürbringer
Sir Archibald
Acting
Eva Pflug
Lolita
Acting
Fritz Rasp
Ezra Maitland
Acting
Erwin Strahl
Sergeant Balder (German version) /Sergeant Barclay (English version)
Acting
Ulrich Beiger
Everett
Acting
Michel Hildesheim
Mills
Acting
Charlotte Scheier-Herold
Lady Maggie Farnsworth (German version) /Lady Aubrid Farnsworth (English version)
Acting
Reinhard Kolldehoff
Lew Brady
Acting
Benno Gellenbeck
Inspector Ghent (voice) (uncredited)
Acting
Werner Hedman
Inspektor Genter (German version) /Inspector Higgins (English version) (uncredited)
Directing
Günther Jerschke
Voice of Newsreader on Radio (voice) (uncredited)
Acting
Holger Munk
Sgt. Rubby (Sir Archibalds Vorzimmer-Sergeant) (uncredited)
Acting
Olaf Ussing
Lord Charles Farnsworth (uncredited)
Acting
Carl Ottosen
(uncredited)
Acting