Hellboy | Behind-The-Scenes Guillermo del Toro and Hellboy creator Mike Mignola envisioned the film as a Ray Harryhausen film (who was an American-British animator and special effects creator who is regarded as one of the most influential figures in the history of both fields). The film was shopped and rejected by various studios for years due to studios disliking the title, script and the fact that Ron Perlman was cast as Hellboy. Aside from working with Perlman before, Del Toro chose him for t