Main cast ; Department of Judicial Police (DPJ) • (pilot) /
Jean-Louis Garçon (first season on): commissaire Carl Bachert •
Lola Dewaere: Commandant Raphaëlle Coste •
Chloé Chevallier: Raphaëlle as a child •
Benoît Michel: Captain Nicolas Perran ('Nico') •
Meledeen Yacoubi: Lieutenant Arthur Enguien (seasons 1 to 3) •
Sophia Yamna : Norah Shankar (since season 4) ; Criminal documentation •
Sara Mortensen: Astrid Nielsen, documentarian • : Astrid Nielsen as an adolescent • : Alain Gaillard, director of criminal documentation and Astrid's guardian (principal season 1, guest seasons 2 and 3) • : Gilles, criminal documentation employee (recurring season 1, guest seasons 2 and 3) ; Other officials •
Husky Kihal: Henry Fournier, medical examiner • : Julien Frédéric, police scientific technician • : prosecutor (season 2) ; Family of Astrid Nielsen • : Angus Nielsen, Astrid's father (recurring season 1, guest seasons 2 and 3) •
Elisabeth Mortensen: Mathilde Nielsen, Astrid's mother •
Handy Gedio : Niels, Astrid's half-brother (season 4) ; Family of Raphaëlle Coste •
Timi-Joy Marbot: Théo Coste, Raphaëlle's son • : Philippe Coste, Raphaëlle's father •
Octave Balekdjian: Benjamin Coste, Raphaëlle's older brother ; Autism support group •
Jean-Benoît Souilh : William Thomas, group leader • : Paul Thomas, doctor and brother of William (season 1, episode 7) •
Eléa Folcher : Camille Berezin, William's girlfriend •
Clément Lagouarde : Max •
Lizzy Brynn : Alice •
Clément Langlais : Benoît •
Angélique Bridoux : Camille (since season 3) ; Others •
Kengo Saito : Tetsuo Tanaka, nephew of the grocer, then Astrid's boyfriend (since season 2) •
Akihiro Nishida : Apu Tanaka, Astrid's grocer •
Valérie Kaprisky : Anne Langlais (since season 3) ==Production ==