El Santo
— Santo
Jorge Rivero
— Jorge Rubio
Noé Murayama
— Sadomi Suki
Elizabeth Campbell
— Ruth Taylor
Midori Nagashiro
— Japanese Dancer
José Luis Carol
— Interpol agent
Miguel Gómez Checa
— Chief of evil organization
Olga Morris
— Santo's date
María Salomé
— Jorge's date
Juan Garza
— Agent 8
Gerardo Zepeda
— Agent 7 (as Gerardo Cepeda)
René Barrera
— Agent 4 (as René G. Barrera)
Henry Pilusso
— Wrestler
Manuel Galavis
— Wrestler
Ray Mendoza
— Wrestler
Ramiro Orci
— Agent 2
Fernando Yapur
— Agent with blowtorch
Armando Acosta
— Businessman
Jean Safont
— Wrestling opponent
Manuel Dondé
— Police detective
Rubén Márquez
— Police detective
Julián de Meriche
— Wrestling impresario
Antonio Raxel
— Interpol chief
Leonor Gómez
— Woman in audience (uncredited)