Santo vs. the King of Crime

El Santo

Santo El Enmascarado de Plata

Fernando Casanova

Fernando Lavalle

Ana Bertha Lepe

Virginia

Begoña Palacios

Dancer in club

Roberto Ramírez Garza

as Beto 'el Boticario'

René Cardona

Sr. Roberto de la Llata

Yolanda Ciani

Mercedes

Augusto Benedico

Matias

Víctor Velázquez

Guillermo Álvarez Bianchi

Don Cosme

Antonio Raxel

Freddy (henchman)

Fernando Osés

Enrique Couto

Alberto Mariscal

Santanón

as Enano 'Santanón'

Francisco Curiel

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

Elvira Castillo

Uncredited

Lucía Prado

Uncredited