Marceline, the Vampire Queen (full name: Marceline Abadeer) is one of the main characters in Adventure Time and a half-demon/half-vampire who is over a millennium old. During Finn and Jake's first encounters with her, she requests that they leave wherever they are as long as the areas belong to her. Though initially an enemy to them, she quickly becomes one of Finn and Jake's closest friends. Her father is the demon who rules the Nightosphere.
Marcelien is a thousand years old (mathamatics say that she was born in 2010.), s she said in "Evicted!" and "Daddy's Little Monster." In "Memory of a Memory," one of Marceline's memories shows her as a young girl playing near the burning ruins of a city, presumably the aftermath of the Mushroom War. It is later found out in "I Remember You" that the Ice King gave her Hambo during the war. It is revealed in "Finn the Human" that Marceline already knew the Ice King by the end of the war, confirming that the events shown in "I Remember You" happened during the war, not after. It has yet to be explained how Marceline returned to her family. It is revealed in "Finn the Human" that Marceline was still traveling with the Ice King as the events in that alternate universe cause the Ice King to die and she chooses to guard his dead body.
When Marceline was a teenager, her father ate her fries in the ruins of a diner, as Finn witnessed in her memory. This incident damages Marceline's relationship with her father, which she later sings about in her "Fry Song." At a later point in her life, the first memory where she is chronologically seen as a vampire, she moved into the Tree Fort (that would later become Finn and Jake's home) with her boyfriend Ash. She would later dump him for selling her prized possession Hambo, a raggedy teddy bear that she carried close to her throughout the years of her life that the Ice King was shown in "I Remember You" giving her Hambo when she was young. Marceline has also mentioned her mother, but no in depth information has been given about her or their relationship yet.
In "Evicted!" Marceline says that she had been traveling all over the Land of Ooo, claiming that she has had adventures such as riding Giant Goldfish and traveling to the Fire Kingdom, although, according to Natasha Allegri, she was lying and trying to show off. She has also apparently gained several places of residence throughout her life, which may have been in her attempts to get away from the Ice King.
It's unknown exactly when or how Marceline became a vampire, although she did not have a bite mark on her neck when she was younger. As revealed by her alternate version in Farmworld, Marceline does consider herself half-demon, which may be a major contribution to her longevity. However, this side doesn't give her any magical powers or abilities such as flight and transformation as well as a similar eternal youth to her father, which she appears to have gained due to her vampire powers.
Marceline first appears in "Evicted!", when she arrives in Finn and Jake's house and claims that their house is hers. She explains that she used to live in their house, and the place is still rightfully hers. Finn and Jake reluctantly leave their home when they decide that they are no match for Marceline's powers, and go house-hunting for a new place to live. When Finn and Jake finally settle on a house and get comfortable, Marceline immediately turns up and shows them that she owns that place as well. She also fights Finn and pretends to kill Jake, but she reveals that is was a trick, and she was really just having fun.
In "Henchman," Marceline forces Finn to be her henchman and Jake tries to save him. She was actually still trying to just have fun with Finn, and did this by tricking him into doing things that seemed awful, but were good in the end. Near the conclusion of the episode, Jake knocks off her sunhat and makes her endure the pain of the sunlight, while Finn tries to convince him that she is a good person who just likes to "play games" and make things seem worse than they are. When Jake leaves, it is revealed that Finn secretly helped Marceline survive the attack, deceiving Jake and letting her hide in his backpack.
In "It Came from the Nightosphere," Finn helps Marceline record a mournful song she wrote about her father being ignorant for eating the fries she bought. Marceline reveals the only way to see her father is to draw a happy face on the wall, throw buttermilk at it, and say a chant. Finn quickly follows her instructions, and opens a portal that allows Marceline's dad to enter Ooo. Marceline is angry at Finn for releasing her father from The Nightosphere, and her history with Hunson Abadeer is revealed. Finn immediately sets off stop her father from causing chaos in Ooo, and she comes with him, though she says that she only wants her axe bass back from her dad. When Finn manages to distract Marceline's dad long enough for him and his daughter to start reasonably talking things over, Finn suddenly attacks him and quickly sends him back to the Nightosphere. Though Marceline is upset Finn took down her dad right when they were making up, she is relieved that the drama is over.
In "Go With Me," Marceline helps Finn to make Princess Bubblegum jealous and eventually go to the movies with him. She states that girls like 'fun', and gives Finn ideas to woo her, including wrestling her and letting wolves loose in her bedroom. When her ideas are counter-productive and get Finn kicked out of the Candy Kingdom, Finn asks her to go to the movies with him, but she misunderstands him and responds angrily; Marceline thought Finn was basically asking her to go out with him, but he really just wanted to go with her as a friend. When he explains this, she accepts, and they go to the movies, only to leave early to do more exciting because they both find the movie boring and gross.
In "Heat Signature ", Marceline reveals more of her condescendingly playful nature when she and her ghost friends trick Finn and Jake into believing they have become vampires. However, Marceline's friends go too far, putting Finn and Jake's lives in danger, and she ends up saving them from the ghosts and revealing to them that she was tricking them all along.
In "Memory of a Memory " Marceline is put under a sleeping spell by her ex-boyfriend Ash . When Finn and Jake explore her memory to wake her up, bits of her past are shown, from a moment when she plays with Hambo alone in the ruins of a city, to her tearful fry incident with her dad, to her angry breakup with Ash after he sold Hambo to a witch. After Finn and Jake manage to wake Marceline and remind her of why she broke up with Ash, Marceline lets Finn help her beat up her ex-boyfriend.
In "What Was Missing," it is evident that, although Marceline's past relationship with Princess Bubblegum ended on seemingly bad terms, the two still care for each other to some extent. Marceline sings I'm Just Your Problem out of frustration, confessing that she doesn't feel like she's enough for Princess Bubblegum but wants to make up with her regardless. At the end of the episode, it is revealed that Princess Bubblegum's most prized possession is Marceline's old rock shirt.
In "Marceline's Closet ", Finn and Jake hide in Marceline's house and end up hearing her recording some of her deepest secrets in song. They try to escape her house when she goes to bed, but she hears them leaving and stops them. She surprises them by saying she doesn't mind that they hid in her house, and explains that she hides at their place "all the time".
In "Return to the Nightosphere " and "Daddy's Little Monster ", Marceline invites Finn and Jake to visit the Nightosphere, but is bothered by her dad, who wants her to follow in his footsteps and take his place as ruler. She refuses, and sings "Not Just Your Little Girl" with Finn and Jake, but is transformed into demon form by the Nightosphere amulet her dad gave her. When Finn and Jake finally manage to remove the amulet from Marceline's neck and they are about to escape the Nightosphere again, her dad runs up and tells her he is proud of her anyway, and he actually likes her friends, Finn and Jake.
In "I Remember You ", its revealed that Marceline and Ice King were friends during the Mushroom War, when Ice King was Simon Petrikov and Marceline was a little girl. Ice King drops in on Marceline at her house uninvited for a jam session, bringing with him some old papers and memorabilia as inspiration for songs. When Marceline recognizes old pictures of her and Simon and some writing of Simon Petrikov's she tries to jog Ice King's memory, but it's no use. Marceline gives up trying to reason with Ice King, who can't seem to remember any of his past. They sing an emotional song together, using a note that Simon wrote to Marceline long ago as lyrics. Marceline ends up in tears as she sings. Simon wrote the note as an apology to Marcy for when he wouldn't remember her.
In "Finn the Human" and "Jake the Dog" it is shown what Marceline would be like if she hadn't become a vampire, and instead aged more normally. She is shown in Farmworld, and is an overweight, crazy old lady. She isn't a vampire, but is only a half-demon. She protected Simon's body (as he died since he never became the Ice King), and tries to warn Finn before she is killed when the Mushroom Bomb goes off. Jake, however, undoes Finn's and the Lich's wishes, and the world goes back to normal, with Marceline a youthful-looking vampire again.
In "Bad Little Boy", Marceline overhears Ice King's stories about "Fionna and Cake" and tells him and his previously kidnapped princesses a story of her own. This version introduces her fictional male counterpart, "Marshall Lee".
In "Simon and Marcy", Marceline tells Finn, Jake, and the Ice King about some of her and the Ice King's adventures almost 1000 years ago, when he was still Simon Petrikov and they were friends. Her tale is set after the Great Mushroom War, and little Marcy ends up getting sick. Simon goes to great lengths trying to make her better, and has to use the crown, which increasingly makes him crazy but also gives him the powers to fight off dangerous creatures and protect his friend. He finds chicken soup to cure her, but, unsettlingly, he ends up calling her "Gunter" instead of "Marcy".
In "Sky Witch", Marceline enlists Princess Bubblegum's help to find Maja the Sky Witch, so that she can get Hambo back. After Bubblegum gets them past Maja's outer barrier, Marceline fights Maja's Crabbit Familiar, while PB attempts to look for Hambo. PB eventually encounters Maja, and they make a trade: PB gives the witch the rock shirt Marceline gave her, while Maja gives Princess Bubblegum Hambo. Maja is satisfied with the trade, explaining that the prized shirt holds far more "sentimenal freshness" and "psychic resonance" than Hambo does. Marceline and Hambo are reunited.
Marceline is described as a wild rocker girl. Centuries of wandering the Land of Ooo have made her a fearless daredevil. She is a lover of all things exotic and still travels across the land often. She has a mischievous personality and is rarely intimidated. Despite seeming evil at first, Marceline is a trickster at heart, and her "evil plans" often turn out to be nothing more than elaborate jokes. She is described by Finn as "a radical dame who likes to play games." She loves to play pranks on Finn and Jake. She also occasionally has violent outbursts, as shown in "It Came from the Nightosphere." Though during her line in the song, in "Evicted!," she stated that since she has been alive for over a thousand years she had lost her moral code.
She can also be sentimental. She was very 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.
Marceline seems to be very emotional. For example, in "What Was Missing," she seemed to be more "aggressive" towards Princess Bubblegum than she usually is. She is also very independent, and in early episodes would often act without concern for Finn or his friends. It is easier for Marceline to express her feelings through music, as seen with "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 read the lyrics to "Remember You," the song that Simon Petrikov wrote for her, she began to cry.
Marceline has light blue-gray skin and long, midnight black hair that reaches to her feet. She also sports two marks on her neck, which are presumably the marks of the bite that turned her into a vampire. Despite being over a thousand years old, her appearance and personality is that of a late teenager. In the episode "Go With Me," her hair is shaved into an undercut, which reveals that she has pointy ears. She is very thin and sometimes appears to be thinner than Princess Bubblegum; however, her shape can vary slightly depending on who is drawing her. She is usually floating in the air but when she stands next to the other main characters she is taller than them. In most of her transformations, she is shown to have green eyes. Her looks are more likely as a result of her half-demon heritage than her vampirism.
Marceline wears different outfits in most of her episode appearances.
Powers and abilities
Marceline has many supernatural abilities, some of which exceed those traditionally associated with vampires and therefore might be due to her half-demon heritage instead. She has been shown to possess the following powers:
Levitation: She has the ability to float and even to fly with careful control and rapid speed. She can even sleep while floating, as shown in "Marceline's Closet".
Pyrokinesis: She can light fire with only her mind, as seen in "Evicted!" when she lit up all the candles in the tree-house.
Necromancy: She can raise the dead, as seen in "Henchman".
Rapid healing: She appears to heal quickly from injuries, at least damage from sunlight, as shown once she was returned to the shade in "Henchman".
Shape-shifting: She has the ability to shape-shift into numerous monstrous forms, including a bat, a wolf, a reptilian creature, and a large tentacled monster. She appears to be able to preserve her clothing, even after changing into large forms that would cause it to break: in many appearances, the clothing disappears until she returns to her humanoid form, whereas in "Sky Witch", she performs numerous transformations while still wearing her outfit.
Eating shades of red: Unlike traditional vampires, Marceline is capable of sustaining herself on "shades of red," such as the color in strawberries, rather than being limited to surviving on blood. She has claimed in her first appearance in "Evicted!" to "sometimes" consume blood, but this has never been proved or referenced again. According to the note she left on her door in "Marceline's Closet," she gets lucid dreams when she eats tomatoes.
Marceline additionally seems to have control of how her long hair moves.
When she wears the Nightosphere amulet, she gains the ability to shoot green lasers which either vaporize or transform whatever they hit. She can also create or transform into a large cloud of blood mist with the ability to shoot green lasers. In addition to these things, she also gains the ability to devour souls.
Bass player: She is an expert bass player.
Singer: She is a proficient singer.
Basketball player: She can play basketball and perform a slam dunk without floating.
Marceline is very vulnerable to sunlight, as is common in vampire lore, but she does not dissolve right away however. The nuance to this in the Adventure Time world is that vampires are specifically vulnerable to directsunlight. Marceline is capable of unrestricted movement on a bright sunny day provided that she shields herself, which she usually accomplishes with a combination of a parasol and a large sunhat, sometimes with the addition of full-length gloves to cover her arms. According to Marceline, moving around on a bright day still hurts mildly, comparable to scraping her knee, but she can bear it. Exposure to direct sunlight will cause Marceline to painfully melt into a pile of goo, though if she retreats into cover she can heal back to normal within moments. It is not clear if prolonged exposure to direct sunlight will eventually kill Marceline outright.
Also like typical vampires, Marceline can't see her own reflection in a mirror. In "Heat Signature," Marceline explains to Finn and Jake that vampires can't defeat ghosts: "It's like a rock-paper-scissors thing." It is unknown if Marceline is negatively affected by garlic because her only known exposure to it happened when Jake pelted her in the head with large cloves of it, so the pain she experienced may have come from the impact and not the exposure. It is also unknown if Marceline can be slayed with a wooden stake since Marceline hid when Jake attempted to do so.
Music and instruments
Marceline is a very talented musician and songwriter, and is proficient at singing and playing her basses. Because she is ambidextrous like Finn, she is capable of playing her basses with either hand, and may even be able to employ double handed tapping which would allow her to combine simple rhythm progressions with lead parts. As seen in "It Came from the Nightosphere," Marceline is familiar with the production of chords, which is a technique not normally employed by bass players.
Marceline has three bass guitars, one seen in "Evicted!" a Butterfly Bass seen in "Heat Signature," and her Axe-bass in "Henchman" and "It Came from the Nightosphere." She seems to be most attached to and protective of her Axe-bass. The Axe-bass is supposedly a family heirloom as mentioned by her father in "It Came from the Nightosphere," and it was originally a weapon before Marceline modified it. It is shown in "Daddy's Little Monster" that she also plays and has a banjolele, or banjo ukelele. Though she has amplifiers, she doesn't usually need to plug her instruments into them.
In "Five More Short Graybles," Marceline is in search of a Wizard Bill's music store to find a guitar known to play the 'most savory licks in Ooo.' Whether or not she bought the instrument is uncertain, but she was shown playing it before the scene panned.
Marceline held a huge grudge against her father, Hunson Abadeer, because he ate her fries, as described in her "Fry Song." She also said that she didn't think he cared about or loved her due to the theft and his lack of acknowledgement of her feelings about it, which was more hurtful than the fact it was her fries that he stole. This was made more explicit in Rebecca Sugar's original draft of the song, widely available on the Internet. When he steals her Axe-bass, her grudge against him grew.
After Hunson learned how she really felt when Finn played him the aforementioned song as an attempt to stop Hunson's demonic rampage through Ooo, Hunson told her he loved her, and she reciprocated. They appear to have reconciled for the time being. However, she still prefers that her father remains confined to the Nightosphere, because it is too "emotionally exhausting" when he is around. Despite their undead natures, the two have a fairly classic teenage-daughter-to-father relationship, with underlying love but frequently heated disagreements on the surface, often about seemingly superficial things.
In "Daddy's Little Monster," Marceline asks Finn and Jake if they want to party in the Nightosphere. Finn is reluctant because he still thinks her father is evil, but she assures that he is "cool," perhaps meaning that they are on better terms. Later in the episode after Finn and Jake free Marceline from the Nightosphere amulet's control, she is shocked that her dad fooled her into wearing it: he told her that it would grant her wishes, rather than forcing her to be the demonic ruler of the eponymous realm. Marceline's father confessed that he only wanted to be very proud of her, and Marceline told him that she wanted him to be proud of her of what she is. He says he is proud of her, and smiles, so they may have worked out their issues.
In "I Remember You", in a flashback, a young Marceline is seen saying "Daddy? Daddy where are you?!," indicating that, for some reason, her father wasn't with her after the apocalypse. These details have yet to be explained.
Ann is Marceline's mother. She and Marceline seemed to have a good relationship. She was first heard of in the episode "Henchman," that she would sing songs to her at night and Marceline is reminded of her when she would scrape her knees and her mom would patch her up. She first appeared in "Marceline's Past," when Simon Petricov brought Marceline back to the Nightosphere and she appeared next to Hudson. In that episode, when Hudson was yelling at Simon, Anne was holding Marceline. She was told to be dead from age, because she was human, it was also told that Hudson tried to keep her alive but she couldn't any loner and he didn't want to turn her into a vampire.
Marceline has a pet zombie poodle named Schwable. Schwable was seen briefly in her house in the episode "It Came from the Nightosphere" lying in the living room when Finn and Marceline were doing a song. It walked up and went to another room once Finn started beat-boxing. Pendleton Ward has confirmed that Schwable was based on his friend Marie's dog Schwable. Schwable is a white male poodle that has recently passed away, and is seen on the show as Marceline's dog that roams around her house. In "Marceline's Closet," there is a doggy door in the front that Jake uses to get into Marceline's housewhile Finn and Jake were playing Cloud Hunt.
Marceline and the Ice King were close friends during the aftermath of the Mushroom War when he was still Simon Petrikov and he was the one who originally gave her Hambo. Marceline remembers her past connection with Simon, but the Ice King doesn't. Though Marceline discourages the Ice King from constantly coming to her house, she does not immediately force him out of her house even when Finn and Jake arrive to take him away. Before the crown wiped his memory, he cared for Marceline for a time and wrote her a note about their friendship while apologizing for leaving her and explaining why he has to, which she eventually gets to read. She finally admits to liking the Ice King, but as an old grandfather-figure of some sort, since she stopped the Ice King from kissing her when he mistakes it for flirting and saying she doesn't like him "that way". She is also visibly distraught when she sees that he doesn't remember the meaning of the messages he left for her before his transformation into the Ice King becuas eshe does not know the consequences involved in Ice King's crown, and as she doesn't know how she can help him. She is last seen with him when they turn the notes into a song, and she is shedding tears while singing with her old friend.
In the Farmworld universe, Simon stops the Lich's existence by using his powers to stop the Mushroom Bomb from hitting Earth, but is killed in the process. Distraught by this act of bravery, Marceline protects his dead body for the next thousand years, even avoiding becoming a vampire just to protect him and, more importantly, the ice crown.
In "Simon and Marcy" she is shown to have deep feelings for the Ice King. She says she loves him, and invites him to play basketball with Finn and Jake. She is shown to have a strong emotional bond towards him, thinking of him as a father, and being worried about his well-being and sanity. She also reveals to Finn and Jake her history with him, meaning that she is not ashamed to have an affliation with the Ice King.
Though they were initially enemies, Finn and Marceline soon befriend one another. Even when Marceline acts as a bully in her debut episode "Evicted!," she is impressed by Finn's brave aggression and defiance and chooses to kiss him on the cheek after they fight. Both Marceline and Finn share the same spark for adventure and love of danger and excitement. Marceline is very good friends with Finn and seems to trust him and be very comfortable with him.
One of the reasons Finn and Marceline befriend each other is that Finn saved Marceline's life in "Henchman" when Jake exposed her to the sunlight and threw garlic at her in a misguided attempt to help Finn. However, though they are now friends, Marceline still seems to care about her Axe-bass more than him, as seen in "It Came from the Nightosphere." In "Go With Me," Marceline makes it clear she does not want to date Finn, but Finn explains that he didn't want to date her either. They go to the movies together, but only as friends. Recently, Marceline has expressed that she does indeed care for Finn's well being. This is exemplified in "Heat Signature," where she becomes more protective of Finn when her ghost friends prank him and Jake too far on what started to be a harmless "vampire initiation."
It is revealed in "Marceline's Closet" that Marceline sometimes still hides out in Finn and Jake's Tree Fort. In the same episode, Finn sees Marceline naked as she is about to take a shower, resulting in Finn being very flustered. Also, in the episode, Marceline forgives them for sneaking into her house even though she says not to.
In the episode "Daddy's Little Monster" Marceline's father states that he thinks that her friends, meaning Finn and Jake, are OK. After she finds this out she jests to Finn that she doesn't want to hang out with him anymore.
In "Bad Little Boy," Marceline tells a story centered on the interaction between her male-counterpart, Marshall Lee, and Finn's's female-counterpart, Fionna. It is possible that she based the story on her own interaction with Finn. However, even though Marceline claimed she only likes Finn as a friend, Marshall Lee seemed to think Fionna liked him more than just as a friend.
"Simon and Marcy" marks the first time since "Daddy's Little Monster" that Marceline has hung out with Finn (not including "I Remember You"). She shows that they still have the same friendship they did in previous seasons, backing up that she was only jesting about not wanting to hang out anymore.
As an avid trickster, Marceline can't resist scaring Jake when their two paths meet. Seeing his completely rational fear of vampires, Marceline often teases Jake and intentionally horrifies him when the chance is given. This perpetual bullying comes back to haunt Marceline, however, when Jake refuses to believe in her generally wholesome ways and almost fatally wounds her in "Henchman."
In "It Came From the Nightosphere", Jake hides in Finn's pocket when he's with Marceline, implying that he is still afraid of her. However, later in the season, Jake gets over his fear, and he is often seen hanging out with Finn and Marceline as friends. He might even be fully considered a friend as evidenced in the beginning of "Memory of a Memory," when after the Rag Wizard (Ash in disguise) informs Finn and Jake that Marceline is the one in trouble, he begins running faster, and later in the episode, when they run into the young Marceline and she asks who they are, Finn says "We're Finn and Jake!" then Jake says "We're your friends." "Also, in "Go With Me," he called her "babe." It is still notable, however, that Jake still holds some level of fear for Marceline, as seen on "Marceline's Closet," where he was noticeably scared of what she would do to them upon the realization that he and Finn broke into her house and hid in her closet.
In season 5, Jake is seen playing with Marceline along with Finn and Ice King, implying that they are still friends.
According to the original series pitch document, Marceline and Princess Bubblegum were intended to have a "friendly rivalry."
Princess Bubblegum shows discomfort around Marceline and appears to disapprove of her less-than-refined ways, while Marceline simply responds to this disapproval with mock affability, even teasing Bubblegum by calling her by her first name, "Bonnibel," and pointing out her supposed inability to show someone a good time. The two are shown to be able to clash easily, as seen in "What Was Missing," when Marceline sings "I'm Just Your Problem" to Princess Bubblegum, and spits on her jacket in the midst of a heated argument. In the same episode, it is revealed that Princess Bubblegum's stolen item is a t-shirt that Marceline gave to her some time ago. Bubblegum says that the shirt means a lot to her and admits that she sleeps in it, causing Marceline to blush, something she does only when feeling very emotional. It is then revealed that Marceline herself had not even had an item stolen from her, but had been there solely for the company of those there, including Bubblegum.
Princess Bubblegum and Marceline's friendship is further explored in the comic Adventure Time: Marceline and the Scream Queens, in which Bubblegum becomes the manager of Marceline's band. However, the events expressed here may or may be not canon.
In "Sky Witch," Princess Bubblegum is shown sleeping in the shirt from Marceline, before waking and smelling it deeply. It is also shown that she has a picture of them in her closet, further indicating that she harbors sentimental feelings of some sort for Marceline. Later on in the episode, Marceline enters the castle: flying past a Gumball Guardian, pushing it out of the way, entering the window to where the princess is standing, and closing the curtains, all without the Guardian complaining. Marceline asks Princess Bubblegum to help her find the eponymous sky witch, Maja. The Princess agrees to go with Marceline, who then flies her quickly out of the window and the Candy Kingdom. Bubblegum refers to Marceline affectionately as "friend" when trying to get her to relax and pass through Maja's barriers. Although initially bemused when learning that Marceline has taken her to retrieve Hambo, the Princess softens as she realises how important the teddy bear is to Marceline. Upon discovering that Maja is willing to fight to keep Hambo, Bubblegum barters for Marceline's most beloved treasure by offering her most beloved treasure: the shirt Marceline gave her, which is stated by Maja the Sky Witch to have more "sentimental freshness" and "psychic resonance" than Hambo. Bubblegum gives Marceline Hambo and the two are shown flying away, Bubblegum clinging affectionately to her back.
It seems that Marceline and BMO have a friendly relationship: she is seen playing it during the "House Hunting Song" in "Evicted!" and comments on how she thinks it's cute. Later, in the episode "What Was Missing," Marceline calls BMO "baby" while helping it install an electrical lead to cook her and her other friends some noodles.
In the comics, although these presumably reflect a separate canon, BMO is shown to be happy when Marceline visits Finn and Jake at the treehouse.
Ash is Marceline's ex-boyfriend. They lived in Finn and Jake's Tree Fort together before they moved in. Ash performed spells to impress Marceline and called her "Mar-Mar." Eventually Ash sold Hambo, Marceline's beloved childhood toy, resulting in her becoming enraged and dumping him. They seem to share a punk-like style.
In "Memory of a Memory," Ash poses as the Rag Wizard and pretends Marceline is under a sleep spell in order to trick Finn and Jake into removing the memory of the breakup. She then falls back in love with him, but once Finn shows and explains the situation, she becomes enraged again and kicks Ash in the groin, followed by a heavy pummeling by her and Finn, and later Jake. He does not respect her at all, as he only wants to use her to make him dinner and do other chores.
Adventure Time Game
Invisablity: Marceline turns invisable and can preform combo's without the opponent knowing the exact location.
Death from Behind: Marceline summons a skeleton from the ground behind the opponent that then scratches the opponent.
Bat Dash: Marceline transforms into a small bat and flies into the opponent.
Wolf Jump: Marceline turns into a wolf and jumps on the opponent and scratches them.
Fierce Bass: Marceline swings down on the ground with her Axe Bass while enchanted with fire.
X-Ray - Vamp Bite: Marceline bites very deep in the neck causing the cervical vertebrae to break followed by a claw going into the opponents head making the skull break.
Sunlight Overall: the outfit Marceline wore in the episode "What Was Missing".
Marshall Lee (DLC): genderswapped version of Marceline.
Marceline did not appear in the Animated Short with all of the other main characters, although she is still considered one.
Pendleton Ward stated that Marceline is his favorite character because she is very mysterious.
Marceline plays the bass guitar with her left hand. However, she is ambidextrous, like Finn.
Marceline's name is based on Pendleton Ward's friend, Marie, whose middle name is Marceline. Pen described Marie as someone who likes the horror movie Psycho and dark clothing.
In "Heat Signature," she states that vampires cannot beat ghosts because, "It's like a rock, paper, scissors thing."