Dr. Robert Kolmaar (73 episodes, 1998-2007)
Dr. Judith Sommer (71 episodes, 1998-2007)
Johannes Hoffer / Joe Hoffer (65 episodes, 1998-2007)
Ulla Grünbein (47 episodes, 1998-2007)
Fred Schröder (37 episodes, 1998-2007)
Prof. Bondzio / Prof. Dr. Bondzio / Prof. Dr. Siegmar Bondzio / Professor Dr. Siegmar Bondzio (35 episodes, 1998-2007)
Anna Kolmaar (32 episodes, 1998-2006)
Max Kolditz (24 episodes, 2000-2006)
Wolfgang Hölzermann (16 episodes, 1998-2002)
Etzel Hanisch (16 episodes, 2004-2007)
Dr. Harald Sänger (11 episodes, 1998-2002)
Irina von Levetzow (8 episodes, 1998-1999)
Mense Peiper / Mense peiper (7 episodes, 2003-2004)
Dr. Tanja Rose (6 episodes, 2000)
Helena Sommer (5 episodes, 1998-2002)
Dr. Nadja Heron (6 episodes, 2007)
Helga Karolewitsch (5 episodes, 1998)
Dr. Leilah Berg (5 episodes, 2002-2003)
Nancy (4 episodes, 2000-2007)
Jan Seidel (3 episodes, 1999)
Fritz Löscher (3 episodes, 1998-1999)
Prof. Dr. Günther Nichols / Walter Klock / Wim Geddes (3 episodes, 2002-2005)
Bausenator Jörg Imhof / Jörg Imhoff / Karl Apel (3 episodes, 1998-2004)
Rick Conrad / Rick Konrad (3 episodes, 2002-2003)
Helena Usman / Karoline Krug / Senta Zöllner (3 episodes, 2002-2007)
Jockel Löw (3 episodes, 2007)
Prof. Ruben Donsbach / Prof. Donsbach (3 episodes, 2004-2006)
Leiter der Spurensicherung / Walter Erhardt / Walter Schmidt (3 episodes, 2004-2006)
Dr. Tonja Pilz / Liane von Ansorge (2 episodes, 2000-2005)
Ilse Sänger (2 episodes, 2000)
Dr. Gisela Hörmann (2 episodes, 1998)
Hans Leinen / Helmut Gittel (2 episodes, 2000-2007)
Dr. Patricia Marr / Wanda Nissen (2 episodes, 2000-2006)
Dr. W.D. Kröning / Herbert Ziskin (2 episodes, 1999-2000)
Dr. Norbert Brühle / Polizeidirektor Dr. Erich Puto (2 episodes, 1999-2005)
Jürgen Hagen (2 episodes, 1999-2002)
Professor Walter Traube (2 episodes, 1999)
Walter Burow (2 episodes, 1998-2000)
Karl Breez / Prof. Herbert Colomb (2 episodes, 2000-2002)
Dr. Hannah Degen / Sonja Tewag (2 episodes, 2000-2006)
Emma Berg / Johanna Sidor (2 episodes, 2000-2006)
Vincent Becker / Vincent Tewag (1 episode, 2000-2002)
Norbert van Husen / Thomas Irion (2 episodes, 2002-2004)
Arthur Pollack / Prof. Dr. Wolf Zöllner (2 episodes, 2000-2007)
Hanns Stinn / Paul Lumenta (2 episodes, 2000-2004)
Dr. Alex Leidhoff / Karl Kromberg (2 episodes, 2004-2007)
Hermann Wade / Richard Mohn (2 episodes, 1999-2006)
Dr. Ikke Huber / Herbert Axer (2 episodes, 2000-2006)
Frank Ulrich / Schutzpolizist (2 episodes, 2002-2006)
Annie Lupa / Hanna Brühl (2 episodes, 2006-2007)
Dr. Schramm / Ludger Seiters (2 episodes, 1998-2007)
Herbert Rettich / Wim Dudler (2 episodes, 1999-2006)
Bernd Mettig / Kurt Darboven (2 episodes, 2000-2006)
Hagen Munsch / Linzer (2 episodes, 1998-2006)
Alfred / Alter Mann (2 episodes, 1998-2004)
Max Danner / Walter Pfahler (2 episodes, 1999-2004)
Dr. Fred Sauer (1 episode, 1998-2007)
Florian Vacka / Jasper Röder (2 episodes, 2003-2006)
Dr. Hans-Jörg Christ / Michael Lambert (2 episodes, 2003-2006)
Asja Koppeck / Dr. Axa Forbach (2 episodes, 2003-2006)
Todd Georgy (2 episodes, 2003-2006)
Julia Wander / Tanja Wrobels (2 episodes, 2004-2007)
Peter Ell (2 episodes, 2004-2007)
Dr. Martin Gurland / Hans Forbach (2 episodes, 2004-2006)
Milan Christ / Stefan Taylor (2 episodes, 2004-2006)
Tim Fallstein / Tobias Gramann (2 episodes, 2005-2007)
Richter / Staatsanwalt (2 episodes, 2005-2006)
Margit Straub (1 episode, 2002)
Prof. Ernst Meiborg (1 episode, 2003)
Prostituierte (1 episode, 1998)
Flugbegleiterin (1 episode, 1998)
Annette Ruben (1 episode, 1998)
Fanny Kolberg (1 episode, 1999)
Sanitätsschwester (1 episode, 1999)
Frau Gruber (1 episode, 1999)
Sekretärin (1 episode, 1999)
Malia Reh (1 episode, 2000)
Maria Schwarzkopf (1 episode, 2000)
Konrad Guba (1 episode, 2003)
Nadja Fänger (1 episode, 2004)
Arthur Rix (1 episode, 2004)
Hanna Waller (1 episode, 1998)
Ilse Kanter (1 episode, 1998)
Elke (1 episode, 1998)
Anneke Brendenal (1 episode, 1999)
Frau Schubert (1 episode, 1999)
Prostituierte (1 episode, 1999)
Dr. Dana Horakova (1 episode, 1999)
Karins Nachbarin (1 episode, 1999)
Großmutter (1 episode, 1999)
Christa Kalina (1 episode, 2002)
Prof. Dr. Jürgen Fugmann (1 episode, 2002)
Adrian Rossberg (1 episode, 2002)
Carla Rauter (1 episode, 2002)
Dr. Kirsten Vossberg (1 episode, 2003)
Peter Stiller (1 episode, 2004)
Mirra Kurz (1 episode, 2004)
Miriam Ansbach (1 episode, 2005)
Beate Wieland (1 episode, 2006)
Ernst Loy (1 episode, 2006)
Dr. Emma Kolbe (1 episode, 1998)
Jeannine Deven (1 episode, 1998)
Monika Kerner (1 episode, 1998)
Eva Sonnenberg (1 episode, 1998)
Eva Hansen / Laura Seidel (1 episode, 1999)
Edelgard Rettich (1 episode, 1999)
Verena Stolze (1 episode, 1999)
Karin Birger (1 episode, 1999)
Ärztin (1 episode, 1999)
Magda Gerstenberg (1 episode, 1999)
Professor Dr. Bremer (1 episode, 1999)
Karl Wilk (1 episode, 2000)
Gerti Colomb (1 episode, 2000)
Dr. Wolfram Brandes (1 episode, 2000)
Gudrun Schwarzkopf (1 episode, 2000)
Kalman Wajsberg (1 episode, 2002)
Dr. Hans Ascher (1 episode, 2002)
Dr. Linda Fugmann (1 episode, 2002)
Dr. M. Schmidt (1 episode, 2002)
Jakob Fänger (1 episode, 2004)
Thomas Daff (1 episode, 2004)
Feuerwehrmann (1 episode, 2004)
Orra Lynen (1 episode, 1998)
Margit Vöge (1 episode, 1999)
Frau Kluge (1 episode, 1999)
Frau Glatzies (1 episode, 1999)
Tom Burkhardt (1 episode, 2000)
Karla Warzecha (1 episode, 2000)
(1 episode, 2002)
Waltraud Schrader (1 episode, 2002)
Josef Karzmann (1 episode, 2002)
Dr. Wolfgang Neff (1 episode, 2002)
Rita Mahlow (1 episode, 2002)
Peter Lawin (1 episode, 2004)
Hans Fissle (1 episode, 2004)
Zoohändler (1 episode, 2004)
Reinhardt Staufenfels (1 episode, 2007)
Jantje Kleeve (1 episode, 2007)
Claudia Merkbach (1 episode, 1998)
Alter Polizist (1 episode, 1999)
Inge Keller (1 episode, 1999)
Carla Burckhardt (1 episode, 2000)
René Lister (1 episode, 2000)
Kai Neff (1 episode, 2002)
Anke Remus (1 episode, 2004)
Wanda Golenko (1 episode, 2004)
Schutzpolizist (1 episode, 2004)
Notarzt (1 episode, 2005)
Dr. Martin York (1 episode, 2007)
Lady de Winter (1 episode, 2007)
Prof. Karl Riemeister (1 episode, 1998)
Murmanns Doktor (1 episode, 1998)
Kathleen Fritsche (1 episode, 1999)
Irmgard Witter (1 episode, 1999)
Polizei-Obermeister Fritz (1 episode, 1999)
(1 episode, 1999)
Schulte-Ebberts Freund (1 episode, 1999)
Karl Axer (1 episode, 2000)
Dr. Thomas Pollack (1 episode, 2000)
Harry Till (1 episode, 2000)
Karl Friedrich Sidor (1 episode, 2000)
Werner Füger (1 episode, 2000)
Dr. Daniel Uberoi (1 episode, 2000)
Tina Polonsky (1 episode, 2002)
Helmut Bung (1 episode, 2002)
Helga Rossberg (1 episode, 2002)
Almut Ohm (1 episode, 2004)
Alte Dame (1 episode, 2004)
Karl Ansbach (1 episode, 2005)
Waki Gittel (1 episode, 2007)
Dr. Roman Herbst (1 episode, 2007)
Ann Jankel (1 episode, 2007)
Peter Ruben (1 episode, 1998)
Miriam (1 episode, 1998)
Karl Waller (1 episode, 1998)
Rentner (1 episode, 1998)
Christian Schulte-Ebbert (1 episode, 1999)
Pflegerin (1 episode, 1999)
Taxifahrer (1 episode, 1999)
Sicherheitsbeamter in der Spielhalle (1 episode, 2000)
Helmuth Collin (1 episode, 2000)
Walter Kerkhoff (1 episode, 2002)
Karl Rossberg (1 episode, 2002)
Ron Fugmann (1 episode, 2002)
Solveig Jebsen (1 episode, 2002)
Dr. Gert Fanghähnel (1 episode, 2002)
Jehle Rehm (1 episode, 2007)
Markus Henne (1 episode, 2007)
Dr. Carl Kleeve (1 episode, 2007)
Gerd Vangermain (1 episode, 1998)
Frank Murmann (1 episode, 1998)
Wolfgang Gutmann (1 episode, 1998)
Dr. Georg von Tannen (1 episode, 1998)
Christian Brendenal (1 episode, 1999)
Hilmar Koppe (1 episode, 1999)
Herbert Gerstenberg (1 episode, 1999)
Haftrichter (1 episode, 1999)
Philip Becker (1 episode, 1999)
Henry Börner (1 episode, 2000)
Professor Hans Ohnlaut (1 episode, 2000)
Dr. Bittner (1 episode, 2000)
Dr. K. Gwerer (1 episode, 2002)
Polizeifotograf (1 episode, 2004)
Herbert Jank (1 episode, 2004)
TV-Reporterin (1 episode, 2004)
Sophie Graf (1 episode, 2007)
Hans Wollschläger (1 episode, 1998)
Helmut Kluge (1 episode, 1999)
Prof. Dr. Guntram Becker (1 episode, 1999)
Dirk Bachner (1 episode, 1999)
Polizist (1 episode, 1999)
Paketbote (1 episode, 1999)
Polizei-Obermeister Franke (1 episode, 1999)
Lianes Freundin (1 episode, 2000)
Gerda Imhof (1 episode, 2000)
Friederike Neff (1 episode, 2002)
Kellner (1 episode, 2004)
Annett York (1 episode, 2007)
Titus Sengewald (1 episode, 2007)
Walter Deven (1 episode, 1998)
Herbert Seidel (1 episode, 1999)
Dr. Bernd Röbel (1 episode, 1999)
Hoffer Sr. (1 episode, 1999)
Fritz Rödel (1 episode, 1999)
Arzt (1 episode, 1999)
Ralph Schwarzkopf (1 episode, 2000)
Peter Kalden (1 episode, 2000)
Herbert Warzecha (1 episode, 2000)
Wilhelm Prell (1 episode, 2002)
Herbert Eisold (1 episode, 2002)
Dr. Walter Klock (1 episode, 2002)
Konstantin Larass (1 episode, 2002)
Imbissverkäufer (1 episode, 2004)
Hermann Waller (1 episode, 1998)
Dr. Holger Suschke (1 episode, 1998)
Wolf Buddenberg (1 episode, 1999)
Andreas Brendenal (1 episode, 1999)
Falscher Polizist (1 episode, 1999)
Mitarbeiter Reisebüro (1 episode, 1999)
Klaus Stibi (1 episode, 2000)
Katja Becker (1 episode, 2002)
Ines Höffgen (1 episode, 2002)
Dr. Nadolny (1 episode, 1998)
Prof. Jürgen Keilmann (1 episode, 1999)
Paul Limburg (1 episode, 1999)
Gottschalk (1 episode, 2002)
Johanna Polonsky (1 episode, 2002)
Martin Bialas (1 episode, 2002)
Burkhard Mann (1 episode, 2002)
Ingrid Jank (1 episode, 2004)
Max Grauberger (1 episode, 1998)
Dr. Steffan Berg (1 episode, 1998)
Hans Blumenberg (1 episode, 1998)
Ralph Schenk (1 episode, 1999)
Franz Josef Zeuner (1 episode, 1999)
Dr. Peter Eisenberg (1 episode, 1999)
Rechtsanwalt Kießling (1 episode, 1999)
Walter Seume (1 episode, 2000)
Alter Angler (1 episode, 2004)
Kriminalrat Dr. Herbert Merkbach (1 episode, 1998)
Eugen Fiedler (1 episode, 1998)
Bankangestellter (1 episode, 1999)
Felix Deven (1 episode, 1998)
Jozef Windorski (1 episode, 1998)
Zeuge (1 episode, 1998)
Junger Polizist (1 episode, 1999)
Werner Brodek (1 episode, 1999)
Lafrenz (1 episode, 1999)
Hans Polonsky (1 episode, 2002)
Fernsehreporter (1 episode, 1999)
Tim Guddenberg (1 episode, 2003)
Rita Bonewa (1 episode, 2003)
Tom Hansen (1 episode, 2003)
Ildiko von Thüren (1 episode, 2003)
Dr. Martin Ripkin (1 episode, 2003)
Rita Kerner (1 episode, 2003)
Karen Meiborg (1 episode, 2003)
(1 episode, 2003)
Nina Tavor (1 episode, 2003)
Pförtner (1 episode, 2003)
Friedrich Kurz (1 episode, 2003)
Dr.-Ing. Werner Hirsch (1 episode, 2003)
Catharina Lemmen (1 episode, 2003)
Dr. Christoph Emde (1 episode, 2003)
Martin Rohfels (1 episode, 2003)
Herbert Kotulla (1 episode, 2003)
Anton Fischler (1 episode, 2003)
Ruth Hoog (1 episode, 2003)
Prof. Dr. Manfred Koppeck (1 episode, 2003)
Dr. Maximilian Stich (1 episode, 2003)
Frowald Helm (1 episode, 2003)
Kai Diekmar (1 episode, 2003)
Schwester Bea (1 episode, 2003)
Tina Conradi (1 episode, 2003)
Roman Kohrt (1 episode, 2003)
Prof. Dr. Niels Braasch (1 episode, 2003)
Dr. Thomas Walde (1 episode, 2003)
Gören Adams (1 episode, 2003)
Dr. Hilmar Vossberg (1 episode, 2003)
Franziska Oehler (1 episode, 2003)
Dr. Constantin Lemmen (1 episode, 2003)
Lilly Lambert (1 episode, 2003)
Eva Malten (1 episode, 2003)
Walter Kaller (1 episode, 2003)
Knasti (1 episode, 2003)
Toni Walm (1 episode, 2003)
Talman Lesiak (1 episode, 2003)
Knauf (1 episode, 2003)
Heike Rödel (1 episode, 2003)
Gescha Siewers (1 episode, 2004)
Nick Melker (1 episode, 2004)
Hausmeister (1 episode, 2004)
Ilse Farnung (1 episode, 2004)
Kreszenz Lederle (1 episode, 2004)
Ann Gehlsen (1 episode, 2004)
Dr. Hermann Beil (1 episode, 2004)
Dieter Lethe (1 episode, 2004)
Ellen Nyberg (1 episode, 2004)
Dr. Anette Gotta (1 episode, 2004)
Prof. Dr. Jobst Melker (1 episode, 2004)
Mitko Goff (1 episode, 2004)
Dr. Carl Zemm (1 episode, 2004)
Verehrer von Frau Grünbein (1 episode, 2004)
Albert Geff (1 episode, 2004)
Arthur Rapp (1 episode, 2004)
Nils Fugmann (1 episode, 2004)
Michael Klein (1 episode, 2004)
LKW-Fahrer (1 episode, 2004)
Dr. Herbert Brehmer (1 episode, 2004)
Taxifahrer (1 episode, 2004)
Gunilla Kay (1 episode, 2004)
Dr. Hans Leukers (1 episode, 2004)
Tommy (1 episode, 2004)
Prof. Dr. OMR Karla Brunner (1 episode, 2004)
Vicky Goll (1 episode, 2004)
David Taylor (1 episode, 2004)
Ellen Holm (1 episode, 2004)
Johanna Ägidi (1 episode, 2004)
Dr. Jan Burscheit (1 episode, 2004)
Dr. Toni Kay (1 episode, 2004)
Fluggast (1 episode, 2004)
Dr. Hilbert Verringer (1 episode, 2004)
Bankmitarbeiter (1 episode, 2004)
Inge (1 episode, 2004)
Lydia Melker (1 episode, 2004)
Dr. Hans Stine (1 episode, 2004)
Niklas Kromberg (1 episode, 2004)
Dr. Hans Kimmel (1 episode, 2004)
Hans Stein (1 episode, 2004)
Dr. Karl Lederle (1 episode, 2004)
Knöllchenbeamter (1 episode, 2004)
Assen Ignatow (1 episode, 2004)
Dr. Rudolf Lederle (1 episode, 2004)
Dr. Karl Nedde (1 episode, 2004)
Dr. Henning Fischer (1 episode, 2004)
Junge mit Basketball (1 episode, 2004)
Leonid Wagusin (1 episode, 2004)
Henning Trill (1 episode, 2004)
Kurt Ägidi (1 episode, 2004)
Kinovorführer (1 episode, 2004)
Prof. Tucher (1 episode, 2004)
Frauke Anker (1 episode, 2004)
Eva Belowa (1 episode, 2004)
Dr. Lew Usman (1 episode, 2004)
(1 episode, 2004)
Dr. Rindermann (1 episode, 2004)
Bankfrau (1 episode, 2004)
MTA Laborkeller (1 episode, 2004)
Katharina Usman (1 episode, 2004)
Bimala Chohan (1 episode, 2005)
Marlene Gramann (1 episode, 2005)
Prof. Dr. Helmut Klix (1 episode, 2005)
Nathalie Waldau (1 episode, 2005)
Gabriele Wied (1 episode, 2005)
Dr. Margit Matthae (1 episode, 2005)
Mette Klix (1 episode, 2005)
(1 episode, 2005)
Madan Sansawar (1 episode, 2005)
Dr. Georg Dopfer (1 episode, 2005)
Lydia Morgenstern (1 episode, 2005)
Monica Berli (1 episode, 2005)
Astrid Nichols (1 episode, 2005)
Alexander Gramann (1 episode, 2005)
Tom Ries (1 episode, 2005)
Dr. Leopold Fang (1 episode, 2005)
Ann Hirsch (1 episode, 2005)
Polizist (1 episode, 2005)
Anwalt (1 episode, 2005)
Dr. Sina Eck (1 episode, 2005)
Leiter der Spurensicherung (1 episode, 2005)
Staatsanwalt Schwill (1 episode, 2005)
Dr. Karl Morgenstern (1 episode, 2005)
Katja Fonteyn (1 episode, 2006)
Fanny Eiswald (1 episode, 2006)
Lennard von Stoiben (1 episode, 2006)
Sezen Aksul (1 episode, 2006)
Sonja Polaczky (1 episode, 2006)
Conny Langenbach (1 episode, 2006)
Dr. Bernhard Faber (1 episode, 2006)
Claudia Weihe (1 episode, 2006)
Michael Elsner (1 episode, 2006)
Georg Aigner (1 episode, 2006)
Tom Jablonka (1 episode, 2006)
(1 episode, 2006)
Mark Anders (1 episode, 2006)
Prof. Hans Rozin (1 episode, 2006)
Jockel Graf (1 episode, 2006)
Veronika Preisse (1 episode, 2006)
Irene Mohn (1 episode, 2006)
Hedda Kronberger (1 episode, 2006)
Karen (1 episode, 2006)
Isa Kleiner (1 episode, 2006)
Reporterin (1 episode, 2006)
Jan Spitzer (1 episode, 2006)
Dr. Ursula Bloch (1 episode, 2006)
Leo Fonteyn (1 episode, 2006)
Pförtner (1 episode, 2006)
Kurier (1 episode, 2006)
Dr. Jonas Ohls (1 episode, 2006)
Hausmeister (1 episode, 2006)
Prof. Loos (1 episode, 2006)
Per Müller (1 episode, 2006)
Notar (1 episode, 2006)
Verteidiger (1 episode, 2006)
Dr. Frieder Schenkel (1 episode, 2006)
Inma Fonteyn (1 episode, 2006)
Dr. Ahad Andica (1 episode, 2006)
Pferdepflegerin (1 episode, 2006)
Hans Gigmann (1 episode, 2006)
Helen Mohn (1 episode, 2006)
(1 episode, 2007)
Thomas Beusen (1 episode, 2007)
Anette Albrecht (1 episode, 2007)
Florian Behring (1 episode, 2007)
Dr. Hagen Koerner (1 episode, 2007)
Jutta Seiters (1 episode, 2007)
Charlotte Hingsen (1 episode, 2007)
Carmen Kirow (1 episode, 2007)
Heiner Wander (1 episode, 2007)
Rebekka Holms (1 episode, 2007)
Torsten Kraft (1 episode, 2007)
Eric Fallstein (1 episode, 2007)
Wolfgang Fellbrich (1 episode, 2007)
Frank Behring (1 episode, 2007)
Hanna Stamberg (1 episode, 2007)
Dr. Mark Weber (1 episode, 2007)
Marina (1 episode, 2007)
Ayla Zöllner (1 episode, 2007)
Lisa (1 episode, 2007)
Philipp Haarloff (uncredited) (4 episodes, 2000)
Walter Mohr (uncredited) (1 episode, 1998)
Michael Klein (uncredited) (1 episode, 1999)
Nele Imhof (uncredited) (1 episode, 2000)
Susanne Hoffer (uncredited) (1 episode, 2000)
Annas Lehrerin (uncredited) (1 episode, 2000)
Paul Broszeit (uncredited) (1 episode, 2000)
Boris (uncredited) (1 episode, 2000)
Herbert Söll (uncredited) (1 episode, 2000)
Professor Herbert Walch (uncredited) (1 episode, 2002)
Harry Coswig (uncredited) (1 episode, 2002)
Dr. Doris Staufenberg (uncredited) (1 episode, 2002)
Wachmann (uncredited) (1 episode, 2002)
Interviewer (uncredited) (1 episode, 2005)