All Cast
Antonio Cantafora
Paul
José Luis Ayestarán
Kronos/Supersonic Man
Cameron Mitchell
Dr. Gulik
Diana Polakov
Patricia Morgan / Patricia Gordon
José María Caffarel
Prof. Morgan / Prof. Gordon
Frank Braña
Peterson
Javier De Campos
Drunk
Tito García
George
Luis Barboo
Harrison
Quique Camoiras
Bill
Ángel Ter
Emilio Higuera
Luis Castilla
Emilio Fornet
Marta Fernández Muro
José Antonio Rico
Teófilo Martínez
(voice)