Volkert Kraeft

as Herr Berger

as Stefan Westphal

as John Hamilton

as Julius Jahn (2 episodes)

as Thomas Albrecht (1 episode)

as Robert Simmons

as Maximilian Monk (33 episodes)

as Ulf Norquist (1 episode), as Harald (1 episode)

as Helmut Behrens (1 episode)

as Johann-Philipp Plessen (1 episode), as Georg Zech (1 episode)

as Hubertus von Sachsenau (1 episode)

as Klaus

as Günther Hollwinkel

as Professor Bluhm (1 episode)

as Dr. Klinsheim (1 episode)

as Rolf Weidemann (1 episode)

as Hans-Joachim Dreher (1 episode)

as Duncan

as Haager (1 episode)

as Georg Teuchert

as Christian von Frankenberg (27 episodes)

as Direktor Stockhausen (1 episode)

as Professor Sauer (1 episode)

as Karlheinz Moser (1 episode)

as Dr. Albrecht (2 episodes)