The character of Nuada is a fascinating study in contrasts. On the surface, he appears to be a one-dimensional villain, driven solely by a desire for power. However, as the film progresses, it becomes clear that Nuada is motivated by a desire to reclaim his heritage and protect his people. He sees himself as a visionary, willing to do whatever it takes to ensure the survival of his kingdom, even if it means destroying the modern world.
As for Guillermo del Toro, he has gone on to direct a number of other successful films, including Pacific Rim and Pan's Labyrinth. His love of fantasy and science fiction continues to inspire his work, and he remains one of the most innovative and imaginative filmmakers working today. Hellboy II- The Golden Army