Kennwort Schmetterling

Donata Höffer

as Johanna Beckers

Lisa Kreuzer

as Lisa Peek

Dietmar Mues

as Peek

Dieter Laser

as Melander

Gerd Baltus

as Dejkstra

Peter Buchholz

as Timmermanns

Hannes Messemer

as Bouwmeester

Ulrich von Dobschütz

as Dr. de Ruyter

Gert Haucke

as Prof. van Poorten