Supersonic Man

Antonio Cantafora

Paul

José Luis Ayestarán

Kronos/Supersonic Man

Cameron Mitchell

Dr. Gulik

José María Caffarel

Prof. Morgan / Prof. Gordon

Frank Braña

Peterson

Tito García

George

Luis Barboo

Harrison

Quique Camoiras

Bill

Ángel Ter

Emilio Fornet

Marta Fernández Muro

Diana Polakov

Patricia Morgan / Patricia Gordon

Javier De Campos

Drunk

Emilio Higuera

Luis Castilla

José Antonio Rico

Teófilo Martínez

(voice)

Óscar Simón