- Name: Anton Bohnsack - Human - Brown hair, green eyes - A third-grade elementary school boy - Loves vampire stories - Rüdiger's friend - Has a crush on Anna

- Name: Anna von Schlotterstein - Vampire - Long blonde hair, blue eyes - Rüdiger's younger sister - Used to drink only milk before her vampire fangs grew in - Constantly bickers with her cousin Olga, who is the same age - Has a crush on Anton

- Name: Olga von Seifenschwein - Cousin to Anna and Rüdiger - Constantly bickers with Anna - Has a crush on Anton - The niece of Aunt Dorothee (Rüdiger and Anna's aunt) and the sole heir to the Seifenschwein family - The only survivor of the Seifenschwein family - Raised as a pampered lady, so there isn't much she can do for herself

- Name: Rüdiger von Schlotterstein - Spiky blonde hair - Anna's older brother - Estimated to be 150 years old - Anton's friend - Can be a bit rude at times, but he is a good friend - Has a crush on Olga