Finn (also known as Finn the Human (Boy) and formerly Pen in the original short) is the main protagonist of the series Adventure Time.











  • Hero
  • Adventurer
  • General


  • Margaret (adoptive mother)
  • Joshua (adoptive father)
  • Jake (adoptive brother)
  • Jermaine (adoptive brother)
  • Fionna (blood twin sister)

Introduced in

Animated Short

Voiced by

  • Zack Shada (pilot)
  • Jeremy Shada (Slumber Party Panic-13 Again)
  • Andy Sammonds (13 Again onwards)


June 19

Blood Type



As shown in "Memories of Boom Boom Mountain," Finn appears to have been abandoned in a woodland during infancy. He reveals that he made "boom boom" (a reference to scat) 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 his Baby Finn 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. Later on, in "Finn & Fionna", Finn is revealed to have been born shortly before the Great Mushroom War (AKA World War III). After being frozen in a glacier with his parents & Fionna for nearly 989 years, they thawed out. Afterwards, they were picked up by a passing ship. However, as the ship was sailing just off the coast of Hawaii, a submarine (later revealed to be under the ownership of Dr. U) sunk the ship. Finn nearly drowned, but was rescued by a group of dolphins. He washed ashore in the Land of Ooo (formerly North America). Several hours later, he made boom boom.

Status as the last humanEdit

Finn may be the last true human in the Land of Ooo, or possibly the world. In the episode "Her Parents," Lady Rainicorn's mom says she thought humans were extinct. This lends new significance to his title "Finn the Human," as his humanity may be unique in Ooo.

Up until "Susan Strong," Finn believes he has never met another human. Finn becomes morose and "soul-searchy" when he thinks about it. In the same episode Finn encounters Susan Strong. Even though the other members of Susan's tribe of Hyoomens were revealed to be mutants, Susan's identity as a human or mutant is left ambiguous. Other "human" characters (such as Penny or the Old Man Henchman) have been confirmed by the show's creator, Pendleton Ward, to be mutants or humanoids.

Later, in the interrim episode "13 Again", Fionna makes a small appearance. It was revealed that she is indeed in the same universe as Finn, thus perishing the thought that Finn is the last human. One episode later, in "Finn & Fionna", they finally meet & learn of their siblinghood. Further proof that Finn is not the last human is seen in the special episode "Destruction & Despair" & the spin-off series Adventure Time Songs in: Sonnah.

Appearance and equipmentEdit

Finn is a 14-year-old human. He has very thin, noodly limbs and wears a white hat with two "ears" sticking out on top, which he has proclaimed to be "awesome." His hat covers his entire head, except for his face. He also wears a light-blue T-shirt, denim shorts, a green backpack, rolled-down white socks, and a pair of black shoes. When he's in the Ice Kingdom, he occasionally wears a yellow sweater. He has several missing teeth because he bites trees and rocks among other things. He has also eaten a broom in the episode "Wizard." Ward has also stated that Finn has blonde hair which can be seen in "To Cut a Woman's Hair," where Finn removed his hat (one of three times he has done so), and long, golden locks of hair flowed out. His hair had a glowing sheen and extended his body length, until he cut it off and gave it to the Tree Witch. His hair subsequently began to regrow, as shown in "Mortal Folly" and in "Heat Signature." He wears white briefs that made an appearance in "City of Thieves," when Penny stripped him at the end of the episode.

Although his eyes typically lack detail and appear as small black dots, they are shown to have color in the episode "The Enchiridion!," when Finn is tried by the Dark Magician. His left eye is green while his right eye is blue, characteristic of the genetic condition heterochromia. (But as stated by Andy on Formspring,"That was a special occasion. The heterochromatic effect was a byproduct of him being hypnotized by that guardian dude." Andy Ristaino confirmed that Finn's eyes are blue.

Main article: Finn's swords

Although Finn has wielded all number of weapons, he originally favored a gold sword. As of the episode "Mystery Train," Finn is shown using a new sword with a pink/silver blade and a red, twisted "root" handle. (Finn's original sword was destroyed by a black hole in "The Real You.")

In the third season episode "Still", he is shown using a sword made of steel. He still uses this weapon, but is now infused with magic so it can deflect bullets & shoot a deadly beam.



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, as shown in Mortal Recoil when he picks her up and puts her in her bed. 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). In Season 4, he is shown to be capable of wielding a pair of M-16's rifles, tearing a whole Nut Soldier to the bone & even lifting Fionna over his head.


Besides combat, Finn has displayed many other impressive abilities in handicraft. He has some origami skills, as shown in "Ricardio the Heart Guy," in which he makes Princess Bubblegum a paper crane. Finn is also somewhat gifted at constructing simple machines, such as the catapult in "The Witch's Garden." Finn writes and draws with his left hand and occasionally with both hands 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.


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, demonstrated in "Prisoners of Love," in which he played a short lick before javelin-throwing it at Ice King. Unfortunately, the flute unraveled before it could hit him, and Finn has not played the flute in any episode since.


Finn is very good at playing a video game called Adventure Masters, which he and Jake play on Beemo from time to time. He can also spit very long distances, as demonstrated in "Evicted!," when he spits on Marceline and in "My Two Favorite People," when Finn spits on Tiffany's face. In "Dungeon," one of the trials that Jake says Finn would have breezed through is a spitting competition against a goblin-like creature. In "Finn & Fionna", he is shown to be able to enter a stasis called "Memory Sharing".


Finn and Jake gained magical abilities in the episode "Wizard," but they have never used those abilities in any other episode. Pendleton Ward later revealed on his Formspring that all of the magic Finn and Jake gained in that episode was contained in their robes, which were destroyed.

Likewise, in "The Chamber of Frozen Blades," Finn and Jake gain ice-ninja skills, but it's unlikely they will use them again because, according to Adam Muto, "They didn't have enough time to commit the incantations and hand positions to memory."


Being a hero, Finn has become quite popular in the Land of Ooo, starting many friendly relationships.


As both housemates, and best friends, Finn and Jake share a very deep and strong bond. Having been raised together by Jake's parents, the duo have a relationship similar to that of siblings, with Jake acting as Finn's older brother. Though they have an unconditional love for each other, Finn can get frustrated with Jake because of his laziness and lack of motivation, shown especially in "The Witch's Garden." As a more laid-back character, Jake often tries to relax Finn's fiery personality in the face of a struggle, advising him not to worry in most situations. Though he sometimes leads Finn down the wrong path, Jake genuinely means well for his companion and is usually an encouraging and protecting figure in Finn's life. Finn and Jake have saved each other's lives on several different occasions, and often adventure throughout the Land of Ooo together.

In the fourth season, they began to grow apart as Finn began to spend more time with Fionna & Princess Bubblegum. However, they still acknowledge each other as bro's.

Lady RainicornEdit

Finn became friends with Lady Rainicorn after Jake wanted to hang out with both of them at once in the episode "My Two Favorite People". At first Jake regretted introducing the two, but in the end he was glad it happened. Finn and Lady Rainicorn still share a close bond, despite the fact that Finn can't understand Lady Rainicorn's fluent Korean.

Princess BubblegumEdit

Princess Bubblegum is Finn's girlfriend. They become very protective and jealous when someone else comes between them, as seen in "Ricardio the Heart Guy," in which he sought to one-up Ricardio (obnoxiously performing the Science Dance as a desperate ploy to attract Princess Bubblegum's attention) and expose him as a villain. Conversly, PB threatens to blackmail Flame Princess for kissing Finn on the cheek in "Light My Fire". In "The Real You," Princess Bubblegum kisses Finn on the cheek, and he faints a moment after the kiss.

Finn won the princess over, though PB was the first to speak up. Finn and Princess Bubblegum share a staunch sense of morality and often work together to bring justice and balance to the Land of Ooo. Taking several dangerous and tomboyish cues from Marceline in "Go With Me", Finn tries to set up a movie date with PB, who banishes Finn from the Candy Kingdom until he stops "acting like a psycho", which he proved with the help of the Eleventh Doctor.

In "Mortal Folly," when Finn and Jake are chasing the Lich King, the Ice King persistently nags them to give him their blessing to marry PB. When the Ice King says "it's not like you want to marry her," Finn blushes and angrily throws a rock at him, implying that he does want to marry PB. Earlier in the episode, before embarking on their pursuit of the Lich King, Princess Bubblegum gives Finn a pink, heart sweater that she knitted for him. This sweater would later protect Finn against the Lich using the "power of liking someone a lot," as Finn put it. (He later refers to the sweater as his "like-like sweater.")

In "Mortal Recoil," Finn outwardly confesses to the princess that he "likes her a lot", although it is unknown whether she actually heard him, as she was still possessed by the Lich at the time. Princess Bubblegum, whose incomplete reconstruction at the end of Season 2 (resulting from the candy surgeons' inability to completely recover all the pieces of her bubblegum body) caused her to revert to her 13-year-old self, hugs Finn after her recovery and calls him "Hero." They share a kiss in "Too Young." However, his grip on the princess' heart loosens after her re-ageing and she can only remember the hug (though she was joking, as confirmed by Natasha Allegri). Finn feels beaten afterwards, but a pep-talk from Jake brought his spirits back up. Finn got a kiss from Princess Bubblegum again after winning the wizard battle where she kisses him and then slaps him for cheating.

In "13 Again", Finn & PB finally outwardly professes to loving each other. In the same episode, PB becomes 13 again to be with Finn, using a serum. After a brief stint as a 16-year old, PB perfects the serum & becomes 13. After the transformation, Finn & Princess Bubblegum kiss, this time officially as a couple. They kiss again at the end of the episode. In "Finn & Fionna", she reveals a cover-up to Finn involving Fionna. In that same episode, they kiss twice. PB also mumbles "I love you, Finn" under her breath as Finn departs to find Fionna. She also hopes that Finn is alright after recieving news of The Lich's advance. In "Trip To The Moon", she becomes very concerned when Finn doesn't exit the Righteous nearly 7 hours after landing. In "Shock & Awe", she appoints Finn as general of the Candy Kingdom Army. Their protectiveness of each other is seen in "Light My Fire". For Finn, it's when the Fire King attempts to shoot PB. This sends Finn on a bloody rampage that PB later admitted won them the battle. For PB (as stated earlier), it's when Flame Princess kisses Finn on the cheek. PB then threatens to blackmail FP by posting a photoshopped image of her doing the can-can with The Lich on New Facebook. In "Good Samaritan", Finn took PB in after she was struck by lightning. This courtesy deepened their bond. Later in Season 4, PB decided to join Finn & Fionna on the frontlines & their adventures.

In the live-action movie saga, Finn & PB became closer than ever, especially in the fourth movie, where PB was Finn's only comfort while Fionna was incarcarated aboard the Sky Fortress.


Though an enemy in her debut, "Evicted!," Finn quickly befriends Marceline the Vampire Queen, as he learns that her seemingly evil ways are just playful teasing. A rowdy and adventurous character, Marceline and Finn share the same vigor and thirst for danger. As previously stated, Marceline loves to mess with Finn's head. Despite Jake's fear of Marceline (and of all vampires), Finn enjoys spending time with her so that they can be "awesome together." In "Go With Me," Finn asks her to go to "Couples-Only Movie Night," but only as a friend. Being (mutually) disgusted to the point of vomiting by the idea of kissing, Marceline has no interest in dating Finn.

Ice KingEdit

As the story's recurring antagonist, Ice King and Finn are frequently at odds. Finn is prone to impatience and quick aggression around him but can show him sympathy, as in "When Wedding Bells Thaw." However, Finn's aggression never outweighs his compassion, honor, and respect for life, as evidenced when he refused the opportunity to slay Ice King as Billy had slain the Fire Count. Similarly in "Mortal Recoil," Finn, albeit grudgingly, trusted and united with Ice King against their common enemy of the Lich-possessed Princess Bubblegum. Further contributing to their differences, Ice King competes with Finn for Princess Bubblegum, until the closing scene of Season 2. This mutual attraction for PB can be clearly seen in "Mortal Folly," where Ice King continually pesters Finn for consent to wed PB. Upon Ice King's saying, "it's not like you wanna marry her," Finn blushes and hurls a rock at Ice King. Ice King, however, loses interest in PB after her second revival, which reduces her age to 13. But with the events of "Too Young," Ice King will probably hunt Princesss Bubblgum again. Sure enough, he did in "Wizard Battle."

Oddly enough, Ice King does not seem to really hate Finn and Jake, as he only fights with them because they are opposing each other in terms of morals. He once tried to be friends with them (in his own, misguided way) and has willingly made alliances with them.

In "Finn & Fionna", it is revealed that Ice King invites Finn & Jake for a "Game Night" often. He later gives him information on Fionna, as well as revealing that his supposed "fanfiction" was just for his own entertainment.


Fionna is Finn's twin sister, as revealed in "Finn & Fionna". Finn very much loves her & cares for her. They rarely (if ever) argue, but it is usually a misunderstanding, as they make up very quickly. They have hugged more times than can be counted (or than FCC regulations will allow). In fact, they were so traumatized by their near-death experience on the moon with the Daleks in "Trip to the Moon", they refused to let go of each other. They will also hold each other in fear. They are very protective of each other. When either is in trouble, the other will come to the rescue at once (unless one is incapacitated). Finn even went as far as to disguise himself as a Nut Soldier to infiltrate the Sky Fortress to rescue Fionna in Movie Four.

Prince GumballEdit

Finn has met Prince Gumball on several occasions. Finn see's PG as a cool guy & have had guy-on-guy conversations regarding Fionna.

Marshall LeeEdit

Finn & Marshall Lee are on friendly terms. In "Finn & Fionna", he tells Finn about Fionna.


Lyle, from the spin-off series Adventure Time Songs in: Sonnah, is a human. He & Finn are close friends, mainly because they are the same species & they have the same passion for adventure. They often have guy-on-guy chats about manly topics, but are careful not to say anything sexist, lest Fionna, Olivia and/or Sonia are within earshot.


Another character from Adventure Time SS, Finn also shares a close friendship with Olivia, who in turn is Lyle's best friend. They have teamed up more than once to stop Dr. U or the Nut Kingdom.


Yet another Sonnah resident (though born in Ooo), Finn is great friends with Sonia, who in turn is Lyle's love interest (and later girlfriend). They have the same passion for music.

Dr. UEdit

When Finn learned that Dr. U was responsible for the death of his parents, Finn blew up & now has nothing but burning hatred & malice towards him. He says that when he finds him, he will "stab him through the heart, eat his flesh, consume his soul, mount his head on the wall, and then do the same thing to General Pistachio & The Lich just to be safe!!!!".


Magic FistEdit

Magic Fist is the alter-ego of Finn and Jake that first appeared in "Wizard Battle." He's not a real wizard; he only entered Wizard Battle to save Princess Bubblegum from having to kiss Ice King for the prize was a kiss from her on the lips. He wore a blue eye mask, a cyan hood, and a large red robe. Finn was the head, while Jake was the body.


  • In the pilot, Finn is voiced by Zack Shada. However, in the series, he is voiced by Zack's younger brother, Jeremy Shada.
  • As of "Mystery Train" (an episode that Finn has a birthday in) he has aged and is now 13 years old, as confirmed by both Natasha Allegri and Adam Muto. The date of his birthday is June 18. Oddly enough, this means he shares the same birthday with Princess Bubblegum. Later in Season 4, he turned 14 along with PB & Fionna.
  • Finn technically is still the King of the Goblins; the goblins believe his scapegoat, Whisper Dan, to be him.
  • In "Ocean of Fear," Finn is revealed to be thalassophobic, meaning fearing oceans or seas. Finn has no problem swimming in "Business Time," "My Two Favorite People," and "The Witch's Garden" however because his fear is specific to the ocean, not small bodies of fresh water.[11][12]
  • Finn is shown going through puberty throughout the series. This is seen in "Ocean of Fear" when his voice cracks while screaming. Finn's voice is slightly deeper at 13 than it was at age 12.
  • Finn can sing in "autotune," as seen in "The Jiggler" (he sings Baby) and "Freak City" (he sings The Hero Boy Named Finn). Finn reveals to Jake in "The Jiggler" that he obtained the ability to sing in autotune by swallowing a small computer. However, Finn can also sing without autotuned effects. This is seen when he sings Goblin Song, Stuff Song, and Susan Strong.
  • One of Finn's catch-phrases is being "all about" something. In "Freak City," Finn says he is "frickin' all about sugar". Yet, he also explains that he is even more "all about feeding hobos." In "The Real You," Finn shouts "I'm all about stupid!"
  • Finn has a female counterpart: Fionna.
  • In "Slumber Party Panic," a zombie version of Finn makes a cameo appearance.
  • Finn is very tolerant of pain; although in "Crystals Have Power," he cries slightly when Jake pinches him and may have later "cried silently into his pillow for thirty minutes."
  • Finn and Jake frequently use math terms for catch-phrases (e.g. mathematical!, rhombus!, algebraic!). Since Finn is "terrible at math," it is possible that Finn does this to impress Princess Bubblegum, who is an avid scientist and mathematician.
  • Finn's favorite color is baby blue "boy style" as revealed in "The Silent King."
  • When Finn is wearing his doctor suit in "His Hero," he has three Scientific Parasites in his pockets. This is ironic considering Princess Bubblegum, who is smarter, only has one scientific parasite in her lab coat.
  • Finn's favorite food is meatloaf, as stated in "Still."
  • Finn doesn't bathe as revealed in "Too Young."