Black Pit of Dr. M

Gastón Santos

Dr. Eduardo Jiménez

Rafael Bertrand

Dr. Mazali

Mapita Cortés

Patricia Aldama

Carlos Ancira

Elmer, the orderly

Carolina Barret

La Gitana

Beatriz Aguirre

Rosario

Antonio Raxel

Dr. Jacinto Aldama

Luis Aragón

Dr. González

Abel Salazar

José Loza

Amigo de Eduardo en café (uncredited)

Antonio Sandoval

Representante de autoridad (uncredited)

Guillermo Álvarez Bianchi

Don Anselmo (uncredited)