From what I've read, del Toro kind of took Mignola's character and did his own thing to it. Mignola recalled a production conversation where he said, "Well, Hellboy would never do that" and del Toro replied, "My Hellboy would." So maybe there's some resentment there.

Hey Donna! Just wanted to say I really enjoy your reviews. In particular I love how much joy you take in this show. It makes me think back to the episode with renewed appreciation, like "Yeah, that WAS awesome!" Thanks for helping me enjoy one of my fave shows even more.