Martin Laue

as Ralf Grimm

as Volmer Institute Staff

as Martin Scholz

as Arbeiter

as Mike Boll (1 episode)

as Florian Brahms (1 episode)

as Philip Naumann (1 episode)

as Hannes

as Maik Heilig (1 episode)

as Marc Böll (1 episode)

as Christoph Inninger (1 episode)

as Lukas Körber (1 episode)

as Ralf Schuster (1 episode)