Stickleback is the eponymous title character of a steampunk comic series created by Ian Edginton and D'Israeli appearing in UK comics anthology 2000 AD. Described by his author as a "bad guy," Stickleback is cast initially as a Moriarty-type figure, "The Pope of Crime[, who] secretly presides over the criminal fraternity of a fantastical, grotesque, Gormenghast-style old London town."
Stickleback himself, on the cover of 2000 AD Prog #1525 (Feb 2007)
Matt Brooker, whose work most often appears under the pseudonym D'Israeli, is a British comic artist, colorist, writer and letterer. Other pseudonyms he uses include "Molly Eyre" for his writing, and "Harry V. Derci"/"Digital Derci" for his lettering work.
D'Israeli at Caption 2008