Olivia d’Abo guest stars on an episode of “Jo” in the role of Madeleine Haynes. Season 1, Episode 9 “The Catacombes“. Jo is an English-language French police procedural television series created by Canadian screenwriter René Balcer of Law & Order fame with French writing team Franck Ollivier & Malina Detcheva, known for the mini-series Lost Signs. The series, shot entirely in Paris, is centered on Jo Saint-Clair, a cop played by French star Jean Reno who attempts to solve murders taking place around some of the French capital’s most famous locations.