Hellboy is a superhero created by Mike Mignola and appearing in comic books published by Dark Horse Comics. The character first appeared in San Diego Comic-Con Comics #2 (August 1993), and has since appeared in various miniseries, one-shots, and intercompany crossovers. The character has been adapted into four live-action films: Hellboy (2004) and its sequel The Golden Army (2008), a 2019 reboot film, and The Crooked Man (2024). https://en.wikipedia.org/wiki/Hellboy