The film follows Kaspar Hauser (Bruno S.), who lived the first seventeen years of his life chained in a tiny cellar with only a toy horse to occupy his time, devoid of all human contact except for a man who wears a black overcoat and top hat who feeds him.
Bruno S.
as Kaspar Hauser
Walter Ladengast
as Professor Daumer
Brigitte Mira
as Haushälterin Käthe
Willy Semmelrogge
as Ringmaster
Kidlat Tahimik
as Hombrecito, the Indian
Hans Musäus
as Unknown Man
Michael Kroecher
as Lord Stanhope
Henry van Lyck
as Calvary Captain
Enno Patalas
as Pastor Fuhrmann
Volker Elis Pilgrim
as Pastor #2
Volker Prechtel
as Hiltel, the prison guard
Gloria Doer
as Frau Hiltel
