Casts
Stewart Granger
as David Porter
Lex Barker
as Glenn Cassidy
Pierre Brice
as Agent Brice
Karin Dor
as Denise (Rio segment)
Walter Giller
as Karl (Vienna segment)
Johanna Matz
as Monique Carrar (Vienna segment)
Klaus Kinski
as Gomez (Rio segment)
Richard Münch
as Professor Alden (Frame story)
Peter Vogel
as Wendt, Suspected girls' killer (Frame story)
Pascale Petit
as Lotty (Vienna segment)
