Two independent comic adaptations were made for the French market. One was a 3-episode series by artist Christian Gatignol (a.k.a. "Gaty") published by Editions Vaillant in their long-running comic magazine Pif-Gadget.
The other was a 46-page one-shot published by Editions LUG (then the publishing house translating the bulk of Marvel Comics in French) by artist Jean-Yves Mitton, the creator of famed French super-hero Mikros. While Gatignol's version stays close to the original, Mitton went his own way with the Blackstar mythos, creating new enemies for Blackstar to fight (Antrax the coal giant, Telekrane the phantom witch), and stating that Blackstar and Mara had a romantic relationship. While Katana does not appear, she has a counterpart in Blackstar's original girl-friend from Earth, Leia, who appears in a flashback. It is also explained that Blackstar suffers partial amnesia from his crash on Sagar and had all but forgotten Leia when he started his relationship with Mara.