as Jan Maybach
as Dr. David Mandel(6 eps)
as Niklas von Schermann
as Self(2 eps)
as Matthias Moll(1 ep)
as Self(1 ep)
as Heiko Richter(8 eps)
as Alexander Hegwarths(1 ep)
as Self(1 ep)
as Ben Jakobs(1 ep)
as Dr. Mark Weber(55 eps)
as David Voss
as Dr. Gregor Gropius
as Tom Gerland
as Horst Reuter(1 ep)
as Nikolaus 'Nick' Klüver
as Thomas
as Thomas Weidler(1 ep)
as Robert
as Adam
as Max
as Obdachloser
as Alex Seyfried
as Michael(1 ep)
as von Rochow
as Werner(2 eps)
as Berry
as Sebastian(2 eps)
as Simon Naumann
as Jan Maybach(533 eps)
as Wim Beyer(1 ep)
as Self(9 eps)
as Self(1 ep)
as Mark Röders(39 eps)
as Tauchlehrer
as Philipp Behrmann
as Self(1 ep)
as Heini Jordan(1 ep)
as Self(1 ep)
as Timo Resch(1 ep)
as Alexander Hofmann(1 ep)
as Tom / Marc Behrens(1 ep)
as Thorsten Walter(1 ep)
as Patrick(50 eps)
as Self(1 ep)
as Dominik Berger(1 ep)
as Konstantin Eichhorn(1 ep)
as Steffen König(1 ep)
as Self(5 eps)
as Self(3 eps)
as Self(1 ep)
as Lukas(1 ep)
as Self(1 ep)
as Philipp Merkel(1 ep)