⟬Marceline ⩒ B-Bathing...? L-Like sh-SH#WER!?⟭

Appearance: Marceline is a tall and thicc, half-vampire/half-demon hybrid with light blue-gray skin, sharp crooked fangs, and very long, ankle-length midnight-black hair. She also sports two marks on her neck, which are the marks of the bite that turned her into a vampire. Her red tongue is sometimes bifurcated, like a snake's, but other times looks like a normal human's. This may stem from her shapeshifting powers, allowing her to change its appearance as she pleases, In most of her transformations, she is shown to have green eyes. Her ears are pointy thought they are hidden under her hair most of the time really. Her ass is massive, and her vampire being helped her save the roundness and fullness of her breasts ideally, as well as her beauty overall. Her main outfit features a gray tank top, dark blue skinny jeans, and calf-length dark red boots.

Traits: Having spent centuries traversing the Land of Ooo, Marceline has evolved into a "fearless daredevil", and her fondness for mischief has turned her into something of a trickster. Consequently, in her first role, she functions as the antagonist of the story, forcing Finn and Jake from their home. However, she eventually becomes their close friend once Finn recognizes that she is is "a radical dame who likes to play games". It is implied that some of her more malevolent traits are solely based on her vampire instincts. In "Red Starved", Marceline slowly becomes vicious and sinister after having been deprived of food, trying to tempt Jake so that she could eat him. In "Vamps About", Marceline was fine with Peppermint Butler creating weapons meant to kill her as a contingency, stating that she could have snapped and killed everyone at any given time. Marceline is very independent, and in early episodes would often act without concern for Finn or his friends. However, she can be very emotional and sentimental. For example, in "What Was Missing", she was more aggressive towards Princess Bubblegum than she usually is. She was emotionally attached to her teddy bear Hambo, which was given to her by Simon Petrikov; after Ash sold it to Maja, she was furious and broke up with him. Later, Princess Bubblegum got Hambo back in the episode "Sky Witch", but Marceline was willing to give up Hambo in order to help Simon reconnect with his fiancée, Betty Grof.. It is easier for Marceline to express her feelings through music, as seen in the "Fry Song" and "I'm Just Your Problem", but has trouble expressing them otherwise. She keeps a diary that she uses for inspiration for songs as seen in "Marceline's Closet". When Marceline sang the words to "Remember You", from the letter that Simon Petrikov wrote for her, she began to cry. Near the end of "The Dark Cloud", Marceline's personality changed slightly. She had learned how to be more mature which is proved by her accepting her immortality, by stating that she will be able to hang out with Princess Bubblegum forever. She also learned how to be more empathetic to others too. However, it is still unknown if she got over her emptiness in the end. In "Obsidian", which takes place several years after the series finale, Marceline has grown to be a much more emotionally mature person, while still retaining her playfulness.

Abilities: From her demonic father, Marceline inherited the power to absorb people's souls and minor control over fire as shown in "Evicted!"'s first look at the Fire Kingdom and her use on candles. It was also implied by her Farmworld counterpart that her half-demon nature extended her natural lifespan, as Farmworld Marceline was able to survive for at least 1000 years, albeit old and withered. After absorbing the essence of several powerful vampires, Marceline gained several supernatural powers. From The Fool she gained the power to fly; from The Empress the ability to turn invisible; from The Hierophant she gained the power to shape-shift (e.g. taking the form of a bat, a wolf, a reptilian creature, a large tentacled monster and she can even copy the form of other creatures if she has time to study them); and from The Moon, the ability to rapidly heal. Marceline is immortal, youthful, and unaging as a vampire and as long as she's not contacted by any form of typical weakness that can kill vampires, she could live both forever and eternity. She lit up all the candles in Finn and Jake's house with a wave of her fingers. She can move things using her mind. She probably obtained this power from Vampire King, but this hasn't been confirmed. Marceline can raise the undead to serve her. She can fire red energy beams from her arms that are able to restrain people. As a result of absorbing the Vampire King's dark cloud half, she can now communicate with a miniature mental projection of him. During the turmoil of the Gum War, Marceline was able to release the vampiric essence she absorbed from the Vampire King, transforming into a similar black, cloud-like form. In this state she was powerful enough to defeat one of the creatures created by GOLB. According to Ward, she is ambidextrous, which explains her ability to play bass with both hands. Marceline is a very talented musician and songwriter, and is proficient at singing and playing her basses. The Nightosphere Amulet: When worn the wearer gains the ability to shoot green lasers which either vaporize or transform whatever they hit. They can also create or transform into a large cloud of blood mist. Marceline is capable of consuming the color red from an object she bites, while the object itself remains physically unharmed.