Sebastian Kaufmane

as Felix Zahnfeil (2 episodes)

as Kai Evers (8 episodes)

as Dr. Fuhrmann

as Mike Neidhart (1 episode)

as Buchführer

as Volmer Institute Staff

as Stepfather

as Willi Graf

as Simon Ferch (1 episode)

as Leo (2 episodes)

as Student 1

as Bengt Reuter (1 episode)

as Thiess Laurenz (1 episode)

as Ole (1 episode)