Lewis Trondheim

Lewis Trondheim (b. 1964) is a French comics creator and cartoonist, known for being insanely prolific and drawing over 100 titles. He's been on hiatus from comic-making since 2004, partly as burnout from said insane workload.

His real name is Laurent Chabosy, and his Pen Name comes from the Norwegian city of Trondheim. His explanation for this was that "as a last name I wanted to use a city's name, but Lewis Bordeaux or Lewis Toulouse didn't sound so good."

His works include:

Les formidables aventures de Lapinot a/k/a The Spiffy Adventures of McConey, a satirical fantasy series where all the characters are Petting Zoo People. He chose this style since Furries Are Easier to Draw.
Donjon a/k/a Dungeon, co-written by Trondheim and Johann Sfar, a series dealing with a Dungeons and Dragons-style dungeon through three time periods. Not to be confused with Le Donjon De Naheulbeuk.
Kaput and Zosky, adapted later into an animated series.
La Mouche a/k/a The Fly, initially a Japanese-only comic, then redrawn from scratch in French. Adapted into a cartoon named Fly Tales, presumably to prevent confusion with the Cronenberg movie.