Oh, this takes me back! 'The Little Vampire' was one of those childhood gems that stuck with me. Gregory is indeed from the book series by Angela Sommer-Bodenburg—originally written in German as 'Der kleine Vampir.' The first book came out in 1979, and it’s way more detailed than the movie adaptations. The dynamic between Gregory and the human boy, Tony, is fleshed out with way more mischief and heart. The books have this cozy, gothic charm that the films only partly captured. I remember borrowing the series from my local library and being obsessed with how Gregory balanced being a vampire kid with all the usual childhood dilemmas.
Funny enough, the 2000 movie took some liberties—Gregory’s design and personality are a bit different, but the core of his character (that playful, slightly egotistical yet loyal vibe) is still there. If you loved the film, the books are a deeper dive into his world, with way more adventures involving his vampire family and their quirky undead problems. The later books even explore darker themes, like mortality, which surprised me as a kid.