El Santo

~ as ~

Santo

Carlos Romero Marchent

~ as ~

Paul, Agent 9004

Helga Liné

~ as ~

Sara, Mann's Assistant

George Rigaud

~ as ~

Dr. Robert Mann

Antonio Pica

~ as ~

Peter, Mann's Nephew

Mirta Miller

~ as ~

Susan / Margaret Smith

Maribel Hidalgo

~ as ~

Ester, the Blonde Model

Frank Braña

~ as ~

Henchman

Lorenzo Robledo

~ as ~

Henchman

Eduardo Calvo

~ as ~

Museum Director