This film is based on the true story of the Catalan lawyer and engineer Narcís Monturiol i Estarriol (Figueres 1819 - Barcelona 1885) who invented the submarine.
as Narcís Monturiol
as Martí Carlé
as Antoni Altadill
as Joan Monjo
as Accionista 2
as Anna 4
as M. J. Massanés
as Josep Ll. Xifré
as Josep Oliu
