Marceline Abadeer, full title: Marceline the Vampire Queen, (voiced by Olivia Olson) is one of the main characters in Adventure Time. Marceline is a fun-loving 1,000-year-old vampire queen. Unlike a traditional vampire, Marceline does not need to drink blood to survive; rather, she eats the color red. Marceline is also an avid musician who plays an electric bass that she made from her family's heirloom battle-axe.
Marceline is one of the main deutergonists of the Yuna's Princess Adventure franchise.