| Name | Character | Episodes |
|---|---|---|
| Luc Merenda | André Travers | 26 |
| Barbara Cupisti | Alexandra Berg | 26 |
| Ugo Pagliai | Artus Balestra | 26 |
| Georges Marchal | Gilbert Bossis | 26 |
| Philippe Rouleau | Philippe Berg | 26 |
| Pierre Hatet | Jean-Jacques Berg | 26 |
| Sylvie Fennec | Thérèse Berg | 19 |
| Serge Sauvion | Inspector Germain | 14 |
| Catherine Alcover | Mrs. Kovalic | 10 |
| Nadine Alari | Mrs. Quentin | 7 |
| Alexandre Rignault | Gregor Kovalic | 7 |
| Bernard Bloch | 6 | |
| Erick Desmarestz | 5 | |
| André Penvern | 4 | |
| François-Eric Gendron | Airplane pilot | 4 |
| Jacques Morel | Chambonas | 4 |
| Jacques Maury | 4 | |
| René Havard | 3 | |
| Jacques Chailleux | 3 | |
| Jean Le Mouël | 3 | |
| Stéphane Bonnet | 2 | |
| Denyse Roland | 2 | |
| Jean-Pierre Maurin | 2 | |
| Henri Poirier | 2 | |
| Étienne Draber | 2 | |
| Jean Cherlian | 2 | |
| Jean Carmet | Forger | 1 |
| Serge Feuillard | 1 | |
| Jean-Marie Robain | 1 | |
| Michel Peyrelon | 1 | |
| Pierre Belot | 1 | |
| Gérard Lemaire | 1 | |
| Christian de Tillière | 1 | |
| Henri Cogan | 1 | |
| Jean Lanier | 1 | |
| Julie Arnold | Julie, switchboard operator | 1 |