Antonio Cantafora

Paul

Acting

José Luis Ayestarán

Kronos/Supersonic Man

Acting

Cameron Mitchell

Dr. Gulik

Acting

Diana Polakov

Patricia Morgan / Patricia Gordon

Acting

José María Caffarel

Prof. Morgan / Prof. Gordon

Acting

Frank Braña

Peterson

Acting

Javier De Campos

Drunk

Acting

Tito García

George

Acting

Luis Barboo

Harrison

Acting

Quique Camoiras

Bill

Acting

Ángel Ter

Acting

Emilio Higuera

Acting

Luis Castilla

Acting

Emilio Fornet

Acting

Marta Fernández Muro

Acting

José Antonio Rico

Acting

Teófilo Martínez

(voice)

Acting

Óscar Simón

Acting