Bernd Stromberg (46 episodes, 2004-2012)
Ulf Steinke (46 episodes, 2004-2012)
Berthold Heisterkamp (46 episodes, 2004-2012)
Tanja Seifert / Tanja Steinke (46 episodes, 2004-2012)
Herr Becker / Timo Becker (28 episodes, 2005-2012)
Jennifer Schirrmann (25 episodes, 2007-2012)
Erika Burstedt (25 episodes, 2004-2007)
Lars Lehnhoff (16 episodes, 2005-2012)
Sabine Buhrer / Sabine (14 episodes, 2004-2012)
Herr Pötsch / Herr Pritsch / Herr Herford / Pötsch (12 episodes, 2004-2012)
Nicole Rückert (7 episodes, 2005-2007)
Magdalena Prellwitz (9 episodes, 2009)
Achim Dörfler (9 episodes, 2009)
Tatjana Berkel (8 episodes, 2004)
Sinan Turculu (8 episodes, 2004)
Herr Wehmeyer / Hans-Jürgen Wehmeyer (8 episodes, 2007-2009)
Herr Nübel / Nübel (7 episodes, 2009-2012)
Azubi Jonas / Jonas (6 episodes, 2011-2012)
Tremmel / Herr Tremmel (5 episodes, 2011-2012)
Koch Möllers / Kantinenkoch / Möllers (5 episodes, 2004-2012)
Dr. Heinemann (5 episodes, 2005)
Frau Papenacker / Fau Papenacker (4 episodes, 2011-2012)
Herr Stankowski (4 episodes, 2011-2012)
Helge (4 episodes, 2009-2011)
Birgit Stromberg (3 episodes, 2004-2005)
Vanessa Schubert (3 episodes, 2005)
Hausmeister (3 episodes, 2007-2011)
Frau Wilhelmi (2 episodes, 2011-2012)
IT - Fachmann / Jens Schliemann (3 episodes, 2004-2012)
Frau Hilpers (2 episodes, 2004-2012)
Mia (2 episodes, 2009)
Maja Decker / Mitarbeiterin Maja Decker (2 episodes, 2007-2012)
Frau Ph. (2 episodes, 2011)
Helmut Petersen (1 episode, 2004)
Roland Kaisers Manager (1 episode, 2004)
Herr Fritsche (1 episode, 2004)
Herr Grahms (2 episodes, 2005)
Herr Röhler (1 episode, 2004-2005)
Johannes Schmidt (1 episode, 2005)
Theo Höltel (1 episode, 2005)
Schwiegervater Lorenz (1 episode, 2005)
Walter Loermann (1 episode, 2007)
Ina (1 episode, 2004)
Herr Tröscher (1 episode, 2004)
Kerstin Aumann (1 episode, 2005)
Alexandra Klausen (1 episode, 2005)
Hans Georg Althoff (1 episode, 2005)
Jochen Schüller (1 episode, 2007)
Rudi Wippermann (1 episode, 2007)
Herr Nehring (1 episode, 2009)
Jochen Rüther (1 episode, 2011)
Herr Friebe (1 episode, 2004)
Knut (1 episode, 2005)
Herr Wuttke (1 episode, 2005)
Dr. Jendretzke (1 episode, 2007)
Herr Wiebrecht, Erikas Verehrer (1 episode, 2007)
Ute 'Sally' (1 episode, 2009)
Gernot (1 episode, 2009)
Frau Rüther (1 episode, 2011)
Pfarrer Kleuser (1 episode, 2012)
Kellner (1 episode, 2004)
Peter Pöhlmann (1 episode, 2005)
Nyota N'yangasongwa (1 episode, 2005)
Sascha (1 episode, 2009)
Sigi (1 episode, 2009)
Bauer Overbeck (1 episode, 2009)
Jens Reiersen (1 episode, 2011)
Azubi Malik (1 episode, 2011)
Herr Dorenbach (1 episode, 2011)
Empfangsdame Frau Wesel (1 episode, 2011)
Spritti (1 episode, 2007)
Mitarbeiterin (1 episode, 2011)
Mitarbeiter Montenbruck (uncredited) (39 episodes, 2004-2012)
Mitarbeiter Lambert (uncredited) (38 episodes, 2005-2012)
Mitarbeiter Müller (uncredited) (34 episodes, 2004-2012)
Mitarbeiter Hermann (uncredited) (31 episodes, 2005-2012)
Mitarbeiterin Klüver (uncredited) (30 episodes, 2004-2011)
Mitarbeiter Prashant (uncredited) (30 episodes, 2005-2012)
Sachbearbeiterin (uncredited) (16 episodes, 2005-2007)
Mitarbeiterin Landsfried / Mitarbeiterin (uncredited) (8 episodes, 2005-2012)
Mitarbeiter Hans (uncredited) (4 episodes, 2004-2007)
Herr Pritsch (uncredited) (4 episodes, 2004-2005)
Mitarbeiterin Raspe / Mitarbeiterin Schneider (uncredited) (2 episodes, 2005-2009)
Klaus Hilpers (uncredited) (1 episode, 2004)
Computerexperte (uncredited) (1 episode, 2005)
Mann von Nyota (uncredited) (1 episode, 2005)
Möbelpacker (uncredited) (1 episode, 2005)
Gast (uncredited) (1 episode, 2005)
Mitarbeiterin mit Augenpflaster (uncredited) (1 episode, 2007)
Mitarbeiter (uncredited) (1 episode, 2012)