as Dr. Clemens Diersberg
as Alexander Diersberg, sein Stiefbruder
as Peter Brack
as Leontine Diersberg
as Verena Wieland, Musikstudentin
as Ebba Hartwig, Laborantin
as Dina Horster
as Thomas Horster
as Dr. Walter Junghans
as Rodegger
as Lizzie
as Mutter Teetje