Including Lex Barker (Steve Martin), Ronald Fraser (Inspector Dickie Lean), Ann Smyrner (Helga Swenson), Véronique Vendell (Gina), Walter Rilla (Wexler), Dietmar Schönherr (Dr Paul Bryson), Percy Sieff (George Anderson), Gustel Gundelach (Hans Kramer), Gert van den Bergh (Vanberger), Howard Davis (Rawlings), and Sophia Spentzos (Leila).