Gruagach

The Gruagach of Lough Leane is a fairy creature of the Daoine Sidhe, and a vengeful adversary of Hellboy. He is currently trapped in the degenerated body of the fomorian giant Grom, which now resembles a stunted anthropomorphic boar. He blames Hellboy for his current state and seeks revenge for his humiliations. He is also driven by a desire to see his people returned to their former glory, and would rather see the fairy folk die fighting for their survival, instead of simply fading away in the shadow of the human race.