Esther Williams
— Hillary Allen
Cliff Robertson
— Josef Everard
Nehemiah Persoff
— Bruno Everard
Robert Vaughn
— Klaus Everard
Margia Dean
— Carlotta Martinez
David Nelson
— Eric Solden
Renate Mannhardt
— Teresa Vizzini
Carol Christensen
— Garda Everard
Kurt Pecher
— Hans Everard
Franco Andrei
— Fredrik Everard
Peter Capell
— Pietro Vizzini
Stefan Schnabel
— Lawyer
Carleton Young
— Judge Richter
Philo Hauser
— Ringmaster
Mariza Tomic
— Fraustein
Gerd Vespermann
— Prosecutor