Marihuana (El monstruo verde)

José Bohr

Raúl Devoto / Daniel

Lupita Tovar

Irene Heredia

Barry Norton

Carlos

René Cardona

Antonio Pedroza

Ángel T. Sala

Domínguez

Sara García

Petra

Emilio Fernández

El indio

Manuel Noriega

Dr. Bueno

Víctor Junco

(uncredited)

Alberto Martí

Dr. Luis Devoto

Pilar Fernández

Sra. Devoto

Carlos Baz

El Sapo

Carmelita Bohr

Rocío

Virgina Ramsey

Rosa de Oriente

Antonio Manrique

Juan Lee

Roberto Cantú Robert

Dr. Montes

Guillermo Cantú Robert

Nene

Clifford Carr

Director hotel (uncredited)

Max Langler

Camarero (uncredited)

Consuelo Segarra

Enfermera (uncredited)

David Valle González

Policía (uncredited)