Jens Nünemann

as Daniel Miller

as Dr. Kai Martini

as Christoph Lukas (1 episode)

as Oliver Barnes

as Dr. Andreas Sander (180 episodes)

as Patrick O'Hara

as Dr. Moritz Arndt (1 episode)

as Roland van Houten

as Max Reiter

as Max Reiter

as Tim Marlow

as Self (1 episode)

as Josef Dreisacker (1 episode), as Bernd Kröger (1 episode), as Axel Wildmann (1 episode)

as Jens Tammer (1 episode)

as Kai Sturm (23 episodes)

as Self (1 episode)

as Tim Knopf

as Mirko Schmeißer (2 episodes)

as Markus Hoffmann (13 episodes)

as Self (1 episode)

as Andy Bischof

as Schulte (1 episode)

as Ralf Meier (1 episode)

as Self (1 episode)

as Harald Göllner (1 episode)