Manfred Inger

as Mr. Rudetzki (uncredited)

as Conductor (uncredited)

as Nicola

as Heinth

as Dr. Demant

as Heinrich Wagner

as Morano

as Dr. Pollak

as Adalbert Wandel

as Vjeko

as Dr. Bradman

as Kudelka

as Larsen

as Reisender aus Prag