Director
Juan Piquer Simón
DIRECTOR
Stars (in credits order)
Kenneth More
Prof. Otto Lindenbrock
Pep Munné
Axel
Ivonne Sentis
Glauben
Frank Braña
Hans Belker
Jack Taylor
Olsen
José María Caffarel
Professor Fridleson
Emiliano Redondo
Prof. Kristoff
Lone Fleming
Martha
Ricardo Palacios
Train ticket collector
George Rigaud
Professor
Fabián Conde
Ana del Arco
Hans cousin's wife
Manuel Pereiro
ACTOR
Barta Barri
Ángel Álvarez
Ángel Menéndez
Blaki
Museum janitor
Enrique Navarro
Bookseller
Isidro Luengo
Javier de Rivera
Federico Betancourt
Antonio Orengo
Agustín Bescos
Román Ariznavarreta
Luis Barboo
Christopher Guard
Axel(voice)
Deborah Watling
Glauben(voice)
José Rivera
Bookseller(uncredited)