Marihuana (El monstruo verde)
Raúl Devoto / Daniel
Irene Heredia
Carlos
Antonio Pedroza
Domínguez
Dr. Luis Devoto
Sra. Devoto
Petra
El indio
El Sapo
Dr. Bueno
Rocío
Rosa de Oriente
Juan Lee
Dr. Montes
Nene
Director hotel (uncredited)
(uncredited)
Camarero (uncredited)
Enfermera (uncredited)
Policía (uncredited)
