Hellboy is a Dark Horse Comics Character created by Mike Mignola. Hellboy was introduced in the San Diego Comic-Con Comics #2 in 1993. Hellboy has since appeared in a number of graphic novels, movies and cartoons as well as a spin-off series focusing on the Bureau of Paranormal Research and Defense team of which he is a member.
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Hellboy's adventures begin in the 1940s and last into the present day, and involve investigations into the paranormal, including sorcery, Nazi occultism, the Thule Society, hollow earth explorers, werewolves, vampires, and ghosts. Of particular note is the recurring machinations of the Ogdru Jahad, malevolent deities akin to Lovecraft's Old Gods, and the key to their release, the Right Hand of Doom, a relic adorning Hellboy's arm.

