Maximilian Grill

as Alex

as Viktor Popov

as Florian Schmidtke (18 episodes)

as Pittner

as Nils Sandmeier

as Andreas Kringge

as Tonio Niederegger (10 episodes)

as Jan

as Dr. Marco Behring (63 episodes)

as Marvin Müller

as Thomas

as Moritz

as Self (1 episode)

as Achim Herzberg

as Nils

as Tobias Frommolt (1 episode)

as Alexander Stockum (1 episode)

as Dr. Singh

as Reginald Bender

as Andreas Kringge (68 episodes)

as Milchbruder

as Michael Rösler (1 episode)

as Mike (1 episode)

as Pedro