does she have other appearances?
Yes - she appears in in the first season episode "Evicted! ; In the third season episode "Memory of a Memory"
Marceline the Vampire Queen
In the series' present, Marceline eventually comes into contact with Finn and Jake in the first season episode "Evicted!", when she forces them from their home. In the episode "Henchman", Marceline tricks Finn into becoming her accomplice. In the episode, Finn discovers that Marceline is fond of mischief and pranks. Soon thereafter, the two develop a friendship. In the second season premiere "It Came From the Nightosphere", Abadeer is accidentally summoned to Ooo by Finn. While Abadeer ravages the land, Finn discovers that there is animosity between Marceline and her father. Finn manages to distract Abadeer by playing a recording of Marceline's "Fry Song", which leads to a brief moment of reconciliation between the two before Finn sends him back to the Nightosphere. In the third season episode "Memory of a Memory", Ash attempts to rekindle his former relationship with Marceline via trickery. Disguised as Marceline's "spirit animal", he tricks Finn and Jake into believing that Marceline
who does the voice of marceline on adventure time Olivia Olson who is marceline? Marceline the Vampire Queen is a fictional character in the American animated Cartoon Network television series "Adventure Time" is this a cartoon? Yes
wiki:24180555
Marceline the Vampire Queen [SEP] Appearances
Roughly a thousand years prior to the events of the series, Marceline was born to a demon lord, Hunson Abadeer (voiced by Martin Olson), and a human woman (voiced by Rebecca Sugar). Abadeer is the ruler of the Nightosphere—a Hellish dimension sustained by "chaotic evil"—and subsists on the souls of sentient beings. For some reason, Marceline was left abandoned on Earth in events during the Mushroom War, a mysterious war that ravaged the earth one thousand years prior to events of the series. During this time, Simon Petrikov—the name of the Ice King before he was overcome by the evil power of his crown—found Marceline in the ruins of a city and gave her a stuffed animal named Hambo to cheer her up.