The Little Vampire

Based on the popular books, the story tells of Tony who wants a friend to add some adventure to his life. What he gets is Rudolph, a vampire kid with a good appietite. The two end up inseperable, but their fun is cut short when all the hopes of the vampire race could be gone forever in single night. With Tony's access to the daytime world, he helps them to find what they've always wanted.

The Little Vampire (original title: Der kleine Vampir) is a children's fantasy series by German author Angela Sommer-Bodenburg that follows the adventures of young Tony Peasbody and the child vampire Rudolph Sackville-Bagg (Anton Bohnsack and Rüdiger von Schlotterstein in the original German version, respectively).

Source: Wikipedia