Cast
Howard Vernon
The 'professor'
Rico López
Alvarez
José María Caffarel
Police Technician
Álvaro de Luna
Hamlet
José Manuel Martín
Jaime
Jean Marais
Antoine Donadieu
Jean Lara
Pelletier
Léon Zitrone
Self
Antonio Casas
Colonel
Fernando Guillén
Colonel's Deputy
Carlos Otero
André Cagnard
Gouferolles
Carlos Casaravilla
Varosky
Víctor Israel
Police Technician
Marisa Mell
Frieda
Gérard Tichy
Matras