Stewart Granger (53)

David Porter

Lex Barker (47)

Glenn Cassidy

Pierre Brice (37)

Agent Brice

Karin Dor (28)

Denise (Rio segment)

Walter Giller (38)

Karl (Vienna segment)

Johanna Matz (33)

Monique Carrar (Vienna segment)

Klaus Kinski (39)

Gomez (Rio segment)

Richard Münch (50)

Professor Alden (Frame story)

Peter Vogel (29)

Wendt, Suspected girls' killer (Frame story)

Pascale Petit (28)

Lotty (Vienna segment)

Agnès Spaak (22)

Nelly Small (Rio segment)

Herbert Fux (39)

Thug #2 (Vienna segment) (uncredited)

Harald Dietl (33)

Hans, Thug #1 (Vienna segment) (uncredited)

Raoul Retzer (47)

Doorman (Vienna segment) (uncredited)

Margaret Lee (22)

Agent Linda (Rome segment)

Roberto Miali

Pessana (Rio segment)

Carla Calò (39)

Female boss (Rome segment)

Carmen G. Cervera (23)

Joana (Rio segment)

Allen Pinson

Ray Runner (Rio segment)

Fregolente (53)

Harry Brenton (Rio segment)

Kim Camba

Gigi (Rome segment) (unconfirmed)

Fortunato Arena (44)

Taxi driver (Rome segment) (uncredited)

Alberto Bonucci (48)

Professor (Rome segment) (uncredited)

Pietro Ceccarelli (39)

Gangster #2 (Rome segment) (uncredited)

Spartaco Conversi (49)

Gangster #4 (Rome segment) (uncredited)

Franco Daddi (31)

Gangster #3 (Rome segment) (uncredited)

Robert Favart (55)

Sergej (Vienna segment) (uncredited)

Michael Janisch (39)

Kurt Waldeck (Vienna segment) (uncredited)

José Lewgoy (45)

President (Rio segment) (uncredited)

Luciano Pigozzi (39)

Ivan (Rome segment) (uncredited)