Marco Girnth

as Jan Maybach

as Dr. David Mandel (6 episodes)

as Niklas von Schermann

as Self (2 episodes)

as Matthias Moll (1 episode)

as Self (1 episode)

as Heiko Richter (8 episodes)

as Alexander Hegwarths (1 episode)

as Self (1 episode)

as Ben Jakobs (1 episode)

as Dr. Mark Weber (55 episodes)

as David Voss

as Dr. Gregor Gropius

as Tom Gerland

as Horst Reuter (1 episode)

as Nikolaus 'Nick' Klüver

as Thomas

as Thomas Weidler (1 episode)

as Robert

as Adam

as Dirk

as Max

as Obdachloser

as Alex Seyfried

as Michael (1 episode)