El Santo as Santo El Enmascarado de Plata

Fernando Casanova as Fernando Lavalle

Ana Bertha Lepe as Virginia

Begoña Palacios as Dancer in club

Roberto Ramírez Garza as as Beto 'el Boticario'

René Cardona as Sr. Roberto de la Llata

Yolanda Ciani as Mercedes

Augusto Benedico as Matias

Víctor Velázquez as

Guillermo Álvarez Bianchi as Don Cosme

Antonio Raxel as Freddy (henchman)

Fernando Osés as

Enrique Couto as

Alberto Mariscal as

Santanón as as Enano 'Santanón'

Francisco Curiel as Roberto de la Llata as a boy (as El niño Francisco Curiel)

Elvira Castillo as Uncredited

Lucía Prado as Uncredited