Paul

Antonio Cantafora

Acting

Kronos/Supersonic Man

José Luis Ayestarán

Acting

Dr. Gulik

Cameron Mitchell

Acting

Patricia Morgan / Patricia Gordon

Diana Polakov

Acting

Prof. Morgan / Prof. Gordon

José María Caffarel

Acting

Peterson

Frank Braña

Acting

Drunk

Javier De Campos

Acting

George

Tito García

Acting

Harrison

Luis Barboo

Acting

Bill

Quique Camoiras

Acting

Ángel Ter

Acting

Emilio Higuera

Acting

Luis Castilla

Acting

Emilio Fornet

Acting

Marta Fernández Muro

Acting

José Antonio Rico

Acting

(voice)

Teófilo Martínez

Acting

Óscar Simón

Acting