Finn

Finn is an Earth Pony and the main protagonist of My Adventurous Pony Friendship is Mathamatical. He lives at the Tree Fort along with his brother, Jake, and their friend, BMO. He is the older brother of Fionn, who is another main character in the series. Finn marries Marsha's older sister Marceline, which inducts him into royalty. He represents the element of Righteousness.

Personality
Though at times violent and aggressive, Finn is a brave and righteous hero. He has a very strong sense of responsibility and gets upset when he is unable to help others. He seems to be somewhat overprotective of his friends. He is almost physically incapable of doing anything evil or unjust, and will struggle greatly against doing such things. Even though he acts like a normal boy, Finn acts like a gentleman when it comes to ladies. Despite his heroic nature, he also takes a liking to a "normal life" without any recognition or praise for being a hero.

Finn is shown to be a fearless thrill-seeker and enjoys putting himself in the midst of danger simply because he enjoys a challenge. Finn has an unexplained phobia of the ocean, or thalassophobia, despite the fact that he can effortlessly come into contact with any other body of water. While he portrays himself as a rough and tough hero, Finn has a tender side capable of love and compassion, as shown by his boyhood crush on Princess Bubblegum and his brotherly relationship with Jake. However, Finn seems to hate romance movies and kissing. However, Finn was not grossed out by Tree Trunks and the Pig kissing. Finn's growth in accepting romance and physical love is also demonstrated when he willingly kisses Princess Bubblegum and his current girlfriend, Flame Princess and when he kisses Marceline.

Finn’s aspirations to be a great hero makes him somewhat of a moral sheriff in the Land of Ooo, as he is willing to help and protect any innocent person or creature. Finn appears to be somewhat simple-minded, seeing that he gets a lot of conflicting emotions when it's unclear whether something is good or evil.

Many aspects of Finn's personality are shrouded in mystery. Finn believes "imagination is for turbonerds who can't handle how kick butt reality is," showing Finn not only accuses imagination users as "turbonerds" and believes life is fantastic. Finn then refused to use his imagination until he had to reactivate Jake's "bombastic personality" in his imagination land, (which was just a basic gray and white empty plane hinting that Finn isn't very imaginative, but that was contradicted when the gnomes harnessed the energy from Finn's imagination) which was inhabited with a few dainty creatures such as Bellamy Bug. Finn's imagination was than powerful enough to effect the real world (like Jake's but to a lower degree) and turn on Jake's imagination.

Finn can also be very stubborn. Finn can also be easily tricked such as  when Jake convinced him that the giant hawks would take the horse to a land of sunshine and love stuff and take care of him. He can get overly angry and yell, but he immediately feels guilt and remorse and apologizes when he can. Finn prefers to do work and not take the easy way out.

While Finn is shown to be a courageous warrior, he is also shown to have several fears. He is shown to have a fear of clowns. He is shown to have a fear of Bubblegum calling him too young, and he also fears the return of the Lich, or possibly just the Lich himself. He is also shown to fear the Ghost Lady and the ocean ("King Worm," and "Ocean of Fear").

Physical
Finn is proficient in several forms of combat, including hand-to-hand combat, magic, and swordsmanship. He can jump very high and is exceptionally strong and agile for a boy of his age. Despite his age and appearance, Finn seems to be quite strong and athletic; he can be seen wrestling full-grown Marauders, the large grass ogre Donny, and a general variety of monsters and creatures several times his size. Finn is also capable of lifting up Princess Bubblegum and capable of lifting up Marceline. In addition, he was able to lift a tree and hit the giant spider Barb with it. Finn was able to run around carrying a giant cyclops' eye. Lastly, when he stabbed the Evil Monster in the eye, he was able to lift him up slightly off the ground and flip him into the pit. Being the size it is, the giant Evil Monster should have weighed at least a couple of tons, thus showing how strong Finn is. He also can make his arms and legs bend in inhuman ways, as during the Science Dance and when he uses "spaghetti limbs" (waving his arms and legs, which Jake can also do). It's shown that Finn can make fire only with his hands. Finn is very tolerant to pain when the stag broke his legs; he just says, "Whatever." Also, he was able to break the Enchiridion on his knee. He even tries to teach Jake how to do pain tolerance, when he says," just pretend like every bruise is a hickey from the universe." Finn seems to have impeccable balance, as he was able to balance himself on two wheels in his wheelchair, however he refers to it as "skills."

Mental
Finn has the ability to mentally fight psychic abilities. The first time was against the Lich. The second time was against Goliad, as he was constantly able to manipulate his thoughts in order to avoid revealing the plan to defeat Goliad, allowing Princess Bubblegum to create Stormo. Finn can focus for a very long time. As demonstrated, Finn can lock unwanted memories in "the vault." However, this is a normal human ability which is activated if the scene the person had witnessed is too traumatizing for them. Finn has the ability to read and write, and he can also do simple math.

Creative
Besides combat, Finn has displayed many other impressive abilities in handicraft. He has some origami skills. In addition to that, Finn is shown to be able to construct a sculpture (of the Candy Kingdom) from his saliva, which was also made for Princess Bubblegum. Finn is also somewhat gifted at constructing simple machines, such as the catapult.

Musical
Finn enjoys singing; after swallowing a tiny computer, he gained the ability to Auto-tune his voice on command, although he can sing without Auto-tune as well. Apparently, Finn can also play the flute. He is also very good at beat boxing. Finn tries to play Jake's viola, but Jake says he stinks. Jake even imitates his foot prints and said "I'm Finn the Human and I stink at viola." However, Finn once panicked over what instrument to pick, supposedly because he could not play any of them, and settles for sleigh bells. Finn also was seen playing the lute. He was once seen playing the tambourine.

Miscelleous
Finn is very good at playing a video game called Adventure Master, which he and Jake play on BMO from time to time. He can also spit very long distances. One of the trials that Jake says Finn would have breezed through is a spitting competition against a goblin-like creature. Finn is shown to be able to spit water incredibly high into the air. Finn once showers Jake with an abnormal amount of saliva through spitting. As seen, Finn normally writes with his right hand, but he can write and draw with both hands and occasionally at the same time. He additionally handles his sword with his right hand. Suggesting he may be ambidextrous, able to use both hands with equal skill.

Temporary
Finn and Jake gained magical abilities, but they have never used those abilities in any other episode.This is because that all of the magic Finn and Jake gained in that episode was contained in their robes, which were destroyed. Likewise, Finn and Jake gain ice-ninja skills, but it's unlikely they will use them again because they didn't have enough time to commit the incantations and hand positions to memory. Finn seems to speak Latin, although this may be caused by the magical powers of Fight King's arena. Finn was an antagonist once by wearing the Nightosphere amulet, although it is only temporary.

Fighting Skills
Finn is an aggressive hand-to-hand combatant, combining some forms of martial arts or his amazing swordsmanship skills. Finn prefers overpowering his opponents but when he has to, he is quick enough to understand an opponent's weakness or using his environment to win a fight.

Parents
As shown in "Memories of Boom Boom Mountain," Finn appears to have been abandoned in the woods during infancy. He reveals that he made "boom boom" (Finn's word for defecation) on a large leaf, fell on it, and lay there crying until Joshua and Margaret (Jake's parents) rescued him from the wilderness to raise him alongside Jake, who becomes like a brother to him (as such, Jermaine is also Finn's adoptive brother). In "Memory of a Memory," a baby Finn is seen singing a song in the bathroom of what appears to be Joshua and Margaret's house. In "Henchman," when Finn is asked about his parents, he says Jake told him that he came from a cabbage, in jest. In "Susan Strong," Finn states that he knows nothing of his human parents or any other humans.

Siblings
As housemates, brothers and best friends (homies), Finn and Jake share a very deep and strong bond. Having been raised together by Jake's parents, the duo share a relationship similar to that of siblings, with Jake acting as Finn's older brother. One unique part of Finn's relationship with Jake is Jake's ability to tell when Finn is about to cry and it is stated to be a "mother-daughter thing."

Though they have an unconditional love for each other, Finn can get frustrated with Jake because of his laziness and lack of motivation. As a more laid-back character, Jake often tries to relax Finn's fiery personality in the face of a struggle, frequently advising him not to worry. While he sometimes leads Finn down the wrong path, Jake genuinely means well for his companion and is usually an encouraging and protective figure in Finn's life. One time, Jake ventures out to find a girlfriend for Finn to fall in love with, implying that he tries to help Finn in his problems. Finn and Jake have saved each other's lives on several occasions, and often adventure throughout the Land of Ooo together.

They both try to survive throught the dungeon trials; however, they both fail at it and they realize that they need each other as a team to solve their problems, too. This is also evidenced , in which Finn says he wants to have an award with Jake, instead of only himself.

However, there are some occasions in which Finn and Jake fight each other. For example one time they argue on what genre their movie should be, and they refuse to talk to each other until BMO fixes the problem. In the end, they always come back together to being friends. Another time, their fighting goes to a higher level, since they fight after Jake won't take training seriously and the ensuing fight caused multiple injuries to both of them. But, in the end of the episode, they go back to being friends again after their confrontation with the Dream Warrior.

Fionna is his younger sister. Fionna says Finn was the only person she truly accepted as a friend before moving to coming to Ooo, and she performs a musical sequence about him and sings about how they did everything together. She voices her disappointment in the fact that Finn was unable to tell her personally of his upcoming wedding, and once she reaches the Candy Kingdom, she tries to protect Finn, and the rest of Ooo, from Dark Princess.

Cutie Mark
Finn reached the age of twelve and was allowed to go on his first adventure. He went along with his brother Jake. Joshua and Margaret cared for their lunch and weapons and wished them good luck. Finn and Jake asked if Jermaine would come along too but he refused.

Finn and Jake headed out and Jake suggested to visit the Candy Kingdom. Upon arrival they meet up with Lady Rainicorn. Lady then guides them to Princess Bubblegum, when Finn sees PB he immediately falls in love with her. They chat for awhile and head home again. The next day Finn and Jake are out in the Grassland, Finn  was taking a nap while Jake was meditating. Finn asked why he was doing that and Jake says he connected with the Wifi and downloaded a cool song which they danced on. Finn and Jake then see Lady flying by crying and follow her.

The boys tried to talk to herbut Lady entered the Ice Kingdom and fought with Ice King. Finn looked through his binoculars and told this, Jake looked and saw PB trapped. Ice King was zapping at Lady and told Gunter to entertain PB. Gunter did a silly dance for her, but it didn't amuse her. Finn and Jake slided down the hill and bashed into penguins which they used as snowboards. They were down and encountered an Iceclops and a Snow Golem that they fought by throwing snowballs. They also encountered a Fire Elemental which they gave the directions to the Fire Kingdom and threw snowballs at him.

They go up to Ice King's lair and Finn fight the Ice King while Jake and Lady chat and begin to flirt with each other. Ice King freezes Finn who then has a talk with Abraham Lincoln on Mars and returns back to break out of the ice. Ice King runs away with PB so Finn, Jake and Lady chase him while Gunter stays behind disappointed. Finn takes PB and gets caught by Lady while Jake punches off IK's crown who then falls down in the snow. Gunter walks up to him and IK blames him for this. The four land in the Grasslands and PB gives Finn a kiss. Finn then excited wants to leave although Jake wants to stay. Finn says they must go on their next adventure, Jake comments there is no adventure but Finn points to the Ninjas stealing the Old Man's diamonds. They then do a bro-fist and go on adventure and as they run off, Finn's cutie mark appears.

His Friends
<p style="border-bottom-width:0px;border-left-width:0px;font-style:inherit;font-weight:inherit;margin-top:0.4em;margin-right:0px;margin-bottom:0.5em;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;vertical-align:baseline;">In the first episode, he befriends Marsha, Marceline, Marshall Lee, Princess Bubblegum, and Fionna. He quickly learns of the skills of her friends: he admires Marshall Lee's ability to clear the skies, Princess Bubblegum's beautiful decoration work, and Fionna's bird choir's melodious music. She is less impressed with Marceline's over-abundance of hospitality, Marsha's surprise party and rapid-fire one-sided conversation, and even runs away from Bubblegum when she practically forces her to get a makeover. He shares many adventures with his friends throughout the course of the series.