| Name | Character | Episodes |
|---|---|---|
| Horst Janson | Kriminalmeister Robert Hahn | 23 |
| Erik Schumann | Becker | 1 |
| Dieter Borsche | Prof. van Daren | 1 |
| Karl Lieffen | Herr Eisenberger | 1 |
| Eckart Dux | Werner Kolbe | 1 |
| Horst Frank | Rolf Oelker | 1 |
| Horst Frank | Jörn Roth | 1 |
| Gerd Baltus | Herr Beiche | 1 |
| Gerd Baltus | Paul Heller | 1 |
| Thomas Fritsch | Alex Winter | 1 |
| Christiane Krüger | Rita Ohlmeier | 1 |
| Christine Wodetzky | Heidi Schelkopf | 1 |
| Christine Wodetzky | Inga Jensen | 1 |
| Karin Baal | Irene Schumacher | 1 |
| Karin Baal | Frau Koop | 1 |
| Udo Kier | Harry Gätjens | 1 |
| Klaus Maria Brandauer | Werner Feldmeister | 1 |
| Armin Mueller-Stahl | Alex Matuschek | 1 |
| Heinz Baumann | Manfred Rickhoff | 1 |
| Ulli Kinalzik | Fritz Rudow | 1 |
| Karl Michael Vogler | Dieter Delfs | 1 |
| Wolfgang Kieling | Siegfried Kalweit | 1 |
| Wolf Roth | Robert Leber | 1 |
| Wolf Roth | Horst Wacker | 1 |
| Doris Kunstmann | Martha Schroth | 1 |
| Karin Anselm | Sabine Hagen | 1 |
| Wolfgang Völz | Kellner Weber | 1 |
| Judy Winter | Frau Kaminski | 1 |
| Judy Winter | Katja Schilling | 1 |
| Rolf Becker | Pit Martens | 1 |
| Peter Sattmann | Walter | 1 |
| Jan Fedder | Wagner Junior | 1 |
| Arthur Brauss | Klett | 1 |
| Brigitte Grothum | Edith Brinkmann | 1 |
| Klaus Löwitsch | Paul Matuschek | 1 |
| Klaus Löwitsch | Harry Wolters | 1 |
| Karl-Heinz Kreienbaum | Gefängnisdirektor | 1 |
| Lina Carstens | Frau Schwalbe | 1 |
| Tilly Lauenstein | Frau Schumacher | 1 |
| Joost Siedhoff | Herbert Norten | 1 |
| Paul Dahlke | Günter List | 1 |
| Paul Dahlke | Franz Ahrens | 1 |
| Paul Dahlke | Otto Heulmann | 1 |
| Klaus Wildbolz | Horst Fischer | 1 |
| Ilona Grübel | Inge Westphal | 1 |
| Peter Kuiper | 1 | |
| Matthias Ponnier | Albin Koch | 1 |
| Ekkehardt Belle | Erwin Jansen | 1 |
| Günther Lüders | Rolf Hildebrandt | 1 |
| Heidemarie Hatheyer | Frau Schmiedel | 1 |
| Lisa Helwig | Pfandleiherin Emmy | 1 |
| Claus Biederstaedt | Herr Kaminski | 1 |
| Claus Biederstaedt | Dr. Rolf Kahlenberg | 1 |
| Ida Krottendorf | Wanda Kleber | 1 |
| Volker Lechtenbrink | Fritz Schönhut | 1 |
| Volker Lechtenbrink | Fred | 1 |
| Volker Lechtenbrink | Peter Höfer | 1 |
| Volker Lechtenbrink | Leo Koch | 1 |
| Paul Edwin Roth | Uhrenhändler Groth | 1 |
| Paul Edwin Roth | Herr Baumann | 1 |
| Franziska Bronnen | Babsi Ferber | 1 |
| Franziska Bronnen | Sybille Wahl | 1 |
| Peer Schmidt | Erich Linse | 1 |
| Peer Schmidt | Hans Brinkmann | 1 |
| Ursula Diestel | Frau Heinecke | 1 |
| Gerda Gmelin | Frau Wimmer | 1 |
| Wolfgang Wahl | 1 | |
| Günther Jerschke | Beerdigungsunternehmer | 1 |
| Günther Jerschke | Abteilungsleiter | 1 |
| Horst Naumann | Reeder Reimers | 1 |
| Jörg Pleva | Achim Büttner | 1 |
| Herbert Fleischmann | Dr. Robert Steenkamp | 1 |
| Werner Pochath | Heinz Binder | 1 |
| Edith Schultze-Westrum | Frau Neuhaus | 1 |
| Heinz Bennent | Jeffrey Simmons | 1 |
| Hansjörg Felmy | Werner Leist | 1 |