A medieval alchemist (Klaus Kinski), knight (Harvey Keitel) and priest (Fernando Rey) mistake a flying-saucer alien for a dragon.
as Boetius
as Klever
as Fray Lupo
as Princess Alba
as Count of Rue
as Dama de compañía
as Ix
as Caballero Verde
as Pregonero
as Pastor
as Campesino
as Guardián
as Lady in Waiting
as Guardián (uncredited)