Boris Karloff

Prof. John Mayer

Enrique Guzmán

Dr. Paul Rosten

Christa Linder

Laura

Maura Monti

Dr. Isabel Reed

Yerye Beirute

Thomas

Tere Valez

Nancy

Griselda Mejía

Prostitute

Sergio Kleiner

Alien

Mariela Flores

Deaf-mute victim

Tito Novaro

Gen. Nord

Sergio Virel

Villager

Nathanael León

Villager

Carlos León

Villager

Rosángela Balbó

Martha - mayor's wife

Julián de Meriche

Visiting Dignitary

José Luis González de León

Jack Hill

Juan Ibáñez