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|half-human and half-demon Vampire|
|Land of Ooo|
Marceline is a 1000 year old Vampire-Queen. She likes to startle people just for fun and Finn finds out at some point in their adventures, that Marceline actually is quite a nice Vampire. Her father is Hunson Abadeer, the lord of the Nightosphere. The Ice King and her also have a complicated relationship. She once lived with him, after the Mushroom War.