Marceline the Vampire Queen

Marceline the Vampire Queen
Adventure Time character
Marceline, as she appears in the show's intro
First appearance	"Evicted!"
Created by	Pendleton Ward
Voiced by	Olivia Olson Ava Acres (child) Cloris Leachman (old lady)
Information
Full name	Marceline Abadeer
Nickname(s)	Marcy
Species	Half-Demon, Half-Human, Vampire
Gender	Female
Title	The Vampire Queen
Family	Hunson Abadeer (Father) Unnamed mother

Marceline the Vampire Queen is a character in the American animated television series Adventure Time created by Pendleton Ward. She is voiced by Olivia Olson in most appearances, by Ava Acres as a child and by Cloris Leachman as an old woman. Marceline is a fun-loving 1,000-year-old trickster vampire queen. The name "Marceline" is based on the middle name of a childhood friend of Ward's, Marie. The artistic design for Marceline was created by Ward, with small changes and additions added by Phil Rynda, former lead-character designer and prop designer for Adventure Time. Unlike a traditional vampire, Marceline does not need to drink blood to survive; rather, she eats the color red. Marceline is a musician who plays an electric bass that she made from her family's heirloom battle-axe.

The character makes her debut in the first season episode "Evicted!" and functions as an antagonist, forcing Finn and Jake from their home. However, as the series progresses, Marceline becomes a close friend to Finn and Jake. Information regarding her early life remains sparse as of 2015^[update]; however, her demon-father Hunson Abadeer (voiced by Olivia's real-life father, Martin Olson) has appeared in several episodes. In addition, Marceline was the focus of a miniseries entitled Stakes, which aired during the show's seventh season.

Marceline has been critically acclaimed and is popular with fans of Adventure Time. Early in the show's history, Ward himself has stated that Marceline is his favorite character in the series because he does not know everything about her history and backstory, which he noted adds a mysterious element to her character. Despite the positivity, the episodes "What Was Missing" and "Sky Witch" became somewhat controversial because of an implied past relationship between Princess Bubblegum and Marceline.