Joachim Fuchsberger

Richard Gordon

Siegfried Lowitz

(Ober-)Inspektor Elk (German version) /(Chief) Inspector Hedge (English version)

Eddi Arent

James

Elfie von Kalckreuth

Ella Bennet

Walter Wilz

Ray Bennet

Carl Lange

John Bennet

Dieter Eppler

Joshua Broad

Jochen Brockmann

Philo Johnson

Ernst Fritz Fürbringer

Sir Archibald

Eva Pflug

Lolita

Fritz Rasp

Ezra Maitland

Erwin Strahl

Sergeant Balder (German version) /Sergeant Barclay (English version)

Ulrich Beiger

Everett

Michel Hildesheim

Mills

Charlotte Scheier-Herold

Lady Maggie Farnsworth (German version) /Lady Aubrid Farnsworth (English version)

Reinhard Kolldehoff

Lew Brady

Benno Gellenbeck

Inspector Ghent (voice) (uncredited)

Werner Hedman

Inspektor Genter (German version) /Inspector Higgins (English version) (uncredited)

Günther Jerschke

Voice of Newsreader on Radio (voice) (uncredited)

Holger Munk

Sgt. Rubby (Sir Archibalds Vorzimmer-Sergeant) (uncredited)

Olaf Ussing

Lord Charles Farnsworth (uncredited)

Carl Ottosen

(uncredited)

Edgar Wallace

Novel

Egon Eis

Screenplay

J. Joachim Bartsch

Screenplay

Preben Philipsen

Producer

Willy Mattes

Original Music Composer

Ernst W. Kalinke

Director of Photography

Margot Jahn

Editor

Harald Reinl

Director

Helmut Beck

Executive Producer

Erik Aaes

Production Design

Charlotte Flemming

Costume Design

Werner Hedman

Production Manager

Lothar Gündisch

Assistant Director

Knud Kristensen

Sound

Peter Thomas

Original Music Composer