Mike Mignola’s Hellboy universe stands as one of the most richly developed worlds in modern comics, a sprawling mythology that extends far beyond the adventures of the titular red-skinned demon.

All four "Hellboy" movies are based on the Dark Horse Comics character by Mike Mignola. The demon detective has been played by Ron Perlman, David Harbour, and Jack Kesy. Here are all the "Hellboy" ...