Stewart Granger
David Porter
Lex Barker
Glenn Cassidy
Pierre Brice
Agent Brice
Karin Dor
Denise (Rio segment)
Walter Giller
Karl (Vienna segment)
Johanna Matz
Monique Carrar (Vienna segment)
Klaus Kinski
Gomez (Rio segment)
Richard Münch
Professor Alden (Frame story)
Peter Vogel
Wendt, Suspected girls' killer (Frame story)
Pascale Petit
Lotty (Vienna segment)
Agnès Spaak
Nelly Small (Rio segment)
Herbert Fux
Thug #2 (Vienna segment) (uncredited)
Harald Dietl
Hans, Thug #1 (Vienna segment) (uncredited)
Raoul Retzer
Doorman (Vienna segment) (uncredited)
