Distribution
Lex Barker
Glenn Cassidy
Franco Daddi
Gangster #3 (Rome segment) (uncredited)
Michael Janisch
Kurt Waldeck (Vienna segment) (uncredited)
Klaus Kinski
Gomez (Rio segment)
Harald Dietl
Hans, Thug #1 (Vienna segment) (uncredited)
Alberto Bonucci
Professor (Rome segment) (uncredited)
Spartaco Conversi
Gangster #4 (Rome segment) (uncredited)
Stewart Granger
David Porter
Karin Dor
Denise (Rio segment)
Agnès Spaak
Nelly Small (Rio segment)
Carmen G. Cervera
Joana (Rio segment)
Fortunato Arena
Taxi driver (Rome segment) (uncredited)
Robert Favart
Sergej (Vienna segment) (uncredited)
José Lewgoy
President (Rio segment) (uncredited)
Herbert Fux
Thug #2 (Vienna segment) (uncredited)
Fregolente
Harry Brenton (Rio segment)
Luciano Pigozzi
Ivan (Rome segment) (uncredited)
Raoul Retzer
Doorman (Vienna segment) (uncredited)
Johanna Matz
Monique Carrar (Vienna segment)
Pietro Ceccarelli
Gangster #2 (Rome segment) (uncredited)
Richard Münch
Professor Alden (Frame story)
Pascale Petit
Lotty (Vienna segment)
Pierre Brice
Agent Brice
Walter Giller
Karl (Vienna segment)
Peter Vogel
Wendt, Suspected girls' killer (Frame story)
Margaret Lee
Agent Linda (Rome segment)
Carla Calò
Female boss (Rome segment)