Undertale: How Old Are the Characters? - VGKami (2023)

One of the things that makeUndertaleso compelling as a video game is its characters. They’re so compelling, in fact, that even the characters’ ages are being talked about by the community. Allow us to chime in.

Table Of Contents

    How Old Are the Characters in Undertale?

    First things first, it should be noted that there is no official or canon record of the characters’ ages inUndertale.Be that as it may, the fact that there is no canon record of this makes the discussion itself all the more fascinating. We can simply look at the facts the game presents to us and formulate our own assumptions.

    That said, the best thing we can do is make an educated guess as to what each character’s age is. Each character has characteristics and other details that hint at experience and personality that come with age. With every detail we can gather about each character, we can then deduce how old they are. Let’s get started.

    Undertale Character Ages Chart

    As mentioned, there’s no official record of the ages of theUndertale characters. The items below are assumptions based on various factors. Read the details of each character below the table to learn how we came to these conclusions.

    Chara~10-13 when she first fell into the Underground; ~40-50 when she appears in the Genocide route
    Annoying Dog~24 (~136 in dog years)


    Undertale: How Old Are the Characters? - VGKami (1)

    Frisk is the protagonist ofUndertale. They’re the eighth human to fall to the Underground. During the events of the game, Frisk’s appearance is that of a young child, though not old enough to be a teenager. If they are, there’s a very good chance that they’re on the younger spectrum.

    Although controlling Frisk is something we can attribute to plain video game mechanics, it can also be a sign of being impressionable if we take lore into account. Depending on the player’s choices, Frisk can either be a genocidal maniac or a friendly pacifist.

    Frisk is also not young enough to still be interested in toys, as shown when interacting with the toys all around Toriel’s cabin.

    We can expect Frisk to be around 12 to 15 years old.


    Undertale: How Old Are the Characters? - VGKami (2)

    Chara is the first human to ever make their way to the Underground. Chara’s appearance is very similar to that of Frisk. When Chara arrived at the Underground, their age couldn’t have been more than 14. With that assumption, Chara might have been around 10 to 13 by the time they made her way to the Underground.

    However, as noted by Asgore, Chara fell to the underground “long ago.” It isn’t clear how long ago exactly, but by the time Chara fell to the underground, they were about the same age as Asriel, Toriel, and Asgore’s biological child.

    We do know that it’s been long enough that most monsters in the game don’t even know what a human looks like. Even characters like Papyrus and Undyne have never seen a human before. Frisk is the eighth human to fall to the Underground and Chara was the very first one.

    On the other hand, every other human who has fallen since Chara may have just been abducted by Asgore immediately, which is why none of the other monsters in the Underground have seen them.

    That said, a human falling to the Underground could be an event that only happens once or twice every decade, more or less, as it is eventful enough to be a big deal, but not too rare that it is almost like a myth. We can then surmise that Chara may be 40 to 50years old by the time they show up at the end of the Genocide Route.


    Undertale: How Old Are the Characters? - VGKami (3)

    Sans is one of the most enigmatic characters inUndertale.Though aloof, playful, and obviously kind-at-heart, there’s more to Sans than he’s letting on.

    Sans as the final boss, if you follow the Genocide Route, is arguably the toughest enemy in the game. This means Sans has the most experience when it comes to combat. He’s also the only character in the game who can seemingly appear and vanish out of thin air.

    Sans also has an affinity for science and may have been a scientist back in the day.

    Sans also has a very close relationship with Toriel, which implies the two have known each other for a very long time.

    When speaking of his past, Sans always refers to those memories and moments as “a long time ago.” His apathetic nature could also be a result of him being too old to care about the more minute things. This is all very hypothetical, but there’s very good reason to assume Sans is at least50 to 100 years old, if not more.


    Undertale: How Old Are the Characters? - VGKami (4)

    Toriel is the character that saves you from Flowey. She is a very endearing and caring mother figure and we later find out that she used to be the queen of the Underground.

    Toriel is unable to keep aging anymore since the only way for monsters to actually age is to have a child. However, we can safely assume that Toriel is incredibly old since she was there to care for Chara when she fell to the Underground all those years ago. It is said that Toriel was also already living when the war between the humans and the monsters happened, which is a consequential event that happened a long time ago before the events of the game.

    That said, we can easily surmise that Toriel should be at least 50 to a hundred years old, if not more.


    Undertale: How Old Are the Characters? - VGKami (5)

    Asgore is the king of the Underground. He was also there to fight in the war between the humans and the monsters all those centuries ago. We can safely assume that Asgore’s age is close with Toriel’s, his ex-wife and the former queen of the Underground.


    Undertale: How Old Are the Characters? - VGKami (6)

    Asriel is the only son of Toriel and Asgore. When Chara fell to the Underground, both of them were around the same age, but it is not known which of them were older. Like Chara, Asriel must have been around 10 to 13, if not younger, during that time.


    Undertale: How Old Are the Characters? - VGKami (7)

    Papyrus is Sans’ brother. His biggest dream is to join the Royal Guard, which is why he is so keen to capture a human. As the game progresses, Papyrus is held back by his clumsiness and kindness. Whenever he tries to capture Frisk, he either accidentally makes a trap too easy or he simply draws them back because they’re too deadly.

    It is very likely that Papyrus is younger than Sans, perhaps way younger. We’ve already surmised that Sans could be hundreds of years old. Papyrus, on the other hand, may not be older than 20.

    It is theorized that the events of the game are set in the year 2015, which is also the game’s official release date. Papyrus’ UnderNet account name is CoolSkeleton95. A lot of people have theorized that 95 could allude to Papyrus’ birth year, which would be 1995. If both of these theories are true, then Papyrus should only be 20 years old during the events of the game.

    Papyrus being 20 years old is very sensible when considering his actions and motivations in the game. Papyrus is young enough to have dreams that are motivated by shallow things. He aims to achieve his dreams of becoming a member of the Royal Guard. But the only reason why he wants to become one in the first place is to make his mentor proud, make friends, and become popular.


    Undertale: How Old Are the Characters? - VGKami (8)

    Undyne is the leader of the Royal Guard, Alphys’ love interest, and Papyrus’ friend and mentor. She is tough and full of conviction, but she also has interests that show signs of her being young-hearted. Apart from honing her skills in combat, she is also very into anime and cooking.

    Like Papyrus, Undyne also has an UnderNet account, which is named StrongFish91. If we’re to follow the same theory we enforced on Papyrus, there’s a chance Undyne is only 24 years old during the events of the game.


    Undertale: How Old Are the Characters? - VGKami (9)

    Alphys is the Royal Scientist and the creator of both Flowey and Mettaton. She is a brilliant scientist, especially for her age. Or at least, her age that we believe.

    Alphys’ success in her career hints that she is old enough, but her fascination with Undyne and her overall demeanor can also hint that she’s not that much older than Undyne, if she’s even older.

    That said, we can assume that Alphys could be around 24 to 30 years old.


    Undertale: How Old Are the Characters? - VGKami (10)

    Flowey is the sinister plant that you meet when you first start playingUndertale.You also end up fighting this creature at the end of the game, although the difficulty of the fight depends on the gameplay route you took.

    It is later revealed that Flowey is in fact the soulless version of Asriel, Asgore, and Toriel’s only biological child. Asriel eventually fell at the hands of humans. His remains got scattered on a garden of golden flowers, the place he stood on before finally perishing.

    Flowey came to be as a result of Alphys’ experimentation with souls and determination, which revived Asriel as a sentient, soulless golden flower.

    That said, although Flowey is an iteration of Asriel, who we believe was born hundreds of years ago, he was ultimately created by Alphys only when she became the Royal Scientist, who is relatively young. There’s a very good chance Flowey is only around 5 years old, with a heavy emphasis on being more or less than that. Despite this fact, due to being the essence of Asriel, Flowey could still be considered around 40 to 50 years old.


    Undertale: How Old Are the Characters? - VGKami (11)

    After creating a soulless creature with Flowey, Alphys finally managed to create a creature with a soul with Mettaton. Mettaton is an entertainment robot who is as soulful as he is entertaining. Even when he is attempting to kill you, it is later revealed he only did so so that Alphys could rescue you, which in turn would give Alphys a sense of importance. It’s psychopathic, but the robot means well.

    Since Mettaton is the creation of Alphys and she only created him after creating Flowey, Mettaton couldn’t be older than 5 years old.

    Annoying Dog

    Undertale: How Old Are the Characters? - VGKami (12)

    The Annoying Dog isn’t really a character that’s consequential to the overall story ofUndertale.Instead, this character is simply a representation of Toby Fox, the game’s creator. The Annoying Dog pops up from time to time, often causing chaos and mayhem.

    Since the Annoying Dog is a representation of the creator of the game, and Toby Fox was born on October 11, 1991, that means the Annoying Dog was around 24 years old when the game was released, or 136 years old in dog years.


    What is Undyne's age? ›

    Undyne would be around 32 years old because she seems to be older than Sans, but not old in general. Monster Kid would be around 11, because he wears a striped shirt (indicating that he is a child), and he is short. Alphys would be around 25 years old because she seems young, but no younger than 20.

    Is Chara or asriel older? ›

    Asriel: 9-11. He's probably around the same age as Frisk, but maybe a little younger, as he's smaller and he's a "crybaby". Chara: 12-14.

    How old is Papyrus canonically? ›

    Papyrus is about 17 to 20. He has a job, he takes care of his brother, but he's also a bit of a child.

    Who is the oldest person in Undertale? ›

    From what we know, Asgore, Toriel, and Gerson are all old enough that they were around for the battle of humans and monsters. Asgore and Toriel didn't age until they had Asriel and stopped aging when he died, so as far as actual aging Gerson seems the oldest character we meet.

    What is Chara's gender? ›

    What is Chara's gender? Frisk and Chara are as canonically nonbinary as they can get. Both use them/their pronouns. They are their own characters.

    Is Sans middle aged? ›

    Undertale. Sans is a major character in Undertale, the game in which he originated from. He is a very short, middle-aged skeleton who loves making skeleton puns, doing nothing, taking a break from work, and taking naps.

    How old is Sans in human years? ›

    Undertale Character Ages Chart
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    18 Feb 2022

    Is frisk mute? ›

    valerietraa asked: Is Frisk mute? No. Frisk speaks to Toriel, Papyrus, and Undyne over their phone, which is too old to even have texting support before Alphys' upgrade.

    Who is Sans in love with? ›

    Alphys. Though there is evidence that Sans and Alphys have a relationship, Sans only alludes to this in the epilogue.

    Is Sans older than Papyrus? ›

    In depth analysis: Who is the older brother, sans or Papyrus(heavy spoilers) TLDR: sans is actually the older brother.

    How old is Alphys? ›

    Many HeadCanons have established that Alphys and Undyne are both between 20 and 30 years of age (With evidence pointing to Alphys possibly being the younger of the two), which I can find no argument against. Additionally, in other HeadCanons, Chara is assumed to be the same relative age as Frisk.

    How old is Ralsei? ›

    Summary. Ralsei is the Prince of Darkness in the Dark World. He is attempting to fulfill a prophecy in which a human and a monster play significant roles. Some fans say he is 13 years old while others say he is 14 years old.

    What is Frisk's gender? ›

    While there's a lot of Frisk lore hidden in Undertale, the protagonist's gender never comes up, so it's left up to the fans to assume that Frisk is gender-neutral.

    How old is Sans the skeleton? ›

    BirthdayApril 1
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    Is Chara a non-binary? ›

    Chara is not a girl or boy. It is also NOT unproven. Frisk and Chara are as canonically nonbinary as it can get. Both use them/their pronouns.

    Can Chara be a boy name? ›

    Meaning of Chara: Name Chara in the Old German origin, means A man who loves freedom and adventure. Name Chara is of Old German origin and is a Boy name.

    What happens if you name the fallen human Chara? ›

    The only change is that you receive unique text when asked to confirm the name 'Chara' in the name selection menu. This does not affect gameplay on any route. Source is the Undertale Wiki page.

    Is Sans canonically the older brother? ›

    The wiki states that Sans is the older brother, and this is because in a tweet Toby once stated that Papyrus would call Sans "aniki" which is a Japanese term usually used to refer to an older brother.

    Is Papyrus the little brother? ›

    Papyrus is Sans' younger brother! While it is true that Undertale and Deltarune are two different worlds as stated by Toby Fox, we actually have evidence that Papyrus is the younger brother in Undertale's Japanese localization.

    Are Sans and Papyrus brothers? ›

    Sans is a skeleton wearing a blue jacket, black shorts with white stripes, and white slippers. Prior to the events of Undertale, he had moved to the settlement in Snowdin from an unknown location with his brother Papyrus.

    What is Undyne's race? ›

    Undyne is a piscine, anthropomorphic monster.

    How tall is Sans canonically? ›

    4.5 feet is 54 inches, which Sans is 53.94 [54 inches rounded up], so this solidifies the 6.5px per foot theory.

    Is Undyne older than Papyrus? ›

    -Gaster and Maiandra had their first child (Sans) when they were 31 and 28 respectively. They stopped aging after this (I think?). -Undyne and Sans are the same age, therefore 3 years older than Papyrus and Asriel and 5 years older than Candara.

    Why is frisk yellow? ›

    Frisk has yellow skin because they don't have a defined race, like a smiley, emoji or a lego mini-figure. No matter what color your skin is, your age, your gender, your religion, your language, you can relate to Frisk.

    What color is Chara's hair? ›

    Chara has peach skin and brown hair, rosy cheeks, open brown eyes, and a smile that contrasts the protagonist's stoic expression.

    What color are Asriel's eyes? ›

    Asriel has eyes that are a light brownish red in color, likely inherited from his mother, and small endearing fangs.

    Is Asriel a male or female? ›

    he's a boy. It says "Asriel, the king's son" in the game.

    Why does Omega Flowey look so weird? ›

    Flowey's face distorts as he absorbs the human SOULs. After absorbing the human SOULs, Flowey transforms into a grotesque, flower-shaped hybrid of plant tissue, human organs, and machinery. Consisting entirely of rendered images, Photoshop Flowey is stylistically different from anything else in the game.

    How did Flowey become a flower? ›

    So Asriel + First Child's soul left the barrier, got attacked by humans, got covered in the sticky flower seeds of the village, then died in what became Asgore's garden, the first seed attached to his body when he turned to dust became Flowey.

    What is Sans last name? ›

    The name Sans is derived from the extremely popular medieval given name Sancho. This given name was originally derived from the Latin name Sanctius, a derivative of "sanctus." The name owes its popularity to the fact that it was borne by a 9th century martyr of Cordova.

    Does Sans ever stop smiling? ›

    It's in this battle that Sans speaks his innermost feelings, with shaky text and words of a defeated man. However, a close look at his face shows that he still has his smile. This supports the idea that his smile truly is a permanent one rather than a poker face he keeps up.

    Does Sans know about Chara? ›

    Sans presumably knows about Chara because he is trying to stop the anomaly, but he specifically says that he has sort of given up because he knows that his own actions don't matter, so long as there is another being that can just reset things.

    Is Gaster Sans dad? ›

    Gaster is not father to Sans | Fandom. Here's some facts that may prove that Gaster is not the Father of Sans and Papyrus. Remember: This is just a theory, you choose what you think.

    How tall is fell Papyrus? ›

    Fell Papyrus shares many physical similarities to his UnderTale counterpart. He is about 3 inches taller, at 6' 4", with a good posture and bleached white bones.

    What Au is ink Sans from? ›

    Ink came from a conceptual AU that never got off the ground. He's the first and only character with a true soul; yet despite his best effort to improve the AU, he never got a reaction from the inhabitants. In a fit of despair, he destroyed his own soul; accidentally cause him to stumble into the blank void.

    How tall is grillby? ›

    Height: 6 Ft. 3 in.

    How old is Underfell Frisk? ›

    In this AU Sans, Papyrus, and Frisk are all the major characters that the authors put focus on. Sans is 7ft tall, Papyrus is 10'8", and Frisk is written as an adult at 18 years old.

    How old is Kris from Undertale? ›

    While Kris' exact age is unknown, Toriel's mention that they will be going to college like Asriel in the near future means that they are a high school student, and therefore probably between 15 and 18 years old.

    Does Ralsei have crush on Kris? ›

    Ralsei might be so obedient and eager to please because he has a crush on Kris. According to Kidshealth, people might feel shy, giddy, or both around a crush. Concerning giddiness, he believes Darkners can only feel true fulfilment by serving Lightners, and he is quite eager to serve Kris.

    Is Kris Deltarune a girl? ›

    Character Information

    Kris is a non-binary character from Deltarune.

    Does Susie have a tail? ›

    Despite her reptilian looks, Susie doesn't have a tail. When equipping the Jevilstail to Susie, she mentions she "Figured [she'd] grow one someday."

    Is frisk a minor? ›

    Yes, Frisk is actually a teenager. After comparing the height of ingame Frisk to that of Asgore, and then measuring them to that intro video when we see an adult human pointing Asgore with a sword, Frisk is almost the same height as that adult.

    Why did Chara eat buttercups? ›

    They apparently, after realizing that buttercups were poisonous, committed suicide by consuming them. They did it so Asriel could absorb their soul and cross them barrier to claim 6 more and free all of monster kind.

    Is frisk and Chara siblings? ›

    Role. Chara Dreemurr used to live a slightly normal life at Cave Junction, Oregon, alongside her little twin sister Frisk.

    Why does Sans have a blue eye? ›

    Sans' blue eye means Patience, and yellow eye means Juctice. They are the exact same colors as the SOULs. He definitely did not aborb any SOULs.

    What gender is Napstablook? ›

    Napstablook is a character from the video game Undertale. They are non-binary.

    Is Papyrus as strong as Sans? ›

    Papyrus is stronger than Sans. Spoiler alert, almost every enemy is stronger than Sans. But, we'll just talk about Papyrus for now. Papyrus only has five attack and five defense, which is pretty weak for a boss monster.

    How do you date Undyne? ›

    In order to truly befriend Undyne, you need to "date" Papyrus and befriend him, then go to Undyne's house in Waterfall (near Napstablook's house right after the trash zone). Talk to Papyrus to initiate the hangout with Undyne. You also have to have not killed a single other monster during your playthrough.

    What gender is Undyne? ›

    Undyne is female, and she loves Alphys. She seems to be a lesbian since she said the Garbage Dump is a great place to meet girls (and then said not to quote her on that). Alphys is also female, and she's bisexual (or maybe pansexual).

    How old is Sans the skeleton? ›

    BirthdayApril 1
    6 more rows

    Is Alphys a boy? ›

    Alphys (/ˈælfiːz/ AL-feez) is a female, reptilian monster that lives in the lab in western Hotland. She is the incumbent Royal Scientist, a position she was awarded by Asgore after the disappearance of her predecessor.

    Why can't I hang out with Undyne? ›

    Features. The hangout with Undyne occurs here if the protagonist gained no EXP. After the hangout, the house is no longer accessible. If Undyne is befriended after completing the Neutral Route and backtracking (or after resetting and defeating Mettaton), Undyne's Letter can be obtained here instead of in Snowdin.

    What color is Undyne's soul? ›

    The Green Soul is a Soul that you encounter when you fight Undyne.

    What happens if you don't befriend Undyne? ›

    If you don't give Undyne the water, then she will fall into the lava.

    Are there lesbians Undertale? ›

    Character Information

    Undyne is a lesbian character from Undertale.

    Are Undyne and Alphys lesbians? ›

    while undyne is almost certainly a lesbian, given the way she speaks about girls exclusively, alphys is most definitely not a lesbian. while alphys does eventually get with undyne, alphys expresses an interest in males and even entities of unknown sex (the player) as well. alphys is not a lesbian.

    What gender is Frisk? ›

    Technically, Frisk does not have a gender. In the game, they are referred as "Dude" by monster kid and before the true pacifist ending, "they". So there isn't any gender for them.

    Who is Sans in love with? ›

    Alphys. Though there is evidence that Sans and Alphys have a relationship, Sans only alludes to this in the epilogue.

    Is frisk mute? ›

    valerietraa asked: Is Frisk mute? No. Frisk speaks to Toriel, Papyrus, and Undyne over their phone, which is too old to even have texting support before Alphys' upgrade.

    Is Papyrus older than Sans? ›

    In depth analysis: Who is the older brother, sans or Papyrus(heavy spoilers) TLDR: sans is actually the older brother.

    What is Mettaton's gender? ›

    He's confirmed to be male, he just likes girl things.

    Is Alphys a villain? ›

    Alphys is villain. End. Oobooglunk wrote: Throughout all the runs in Undertale, two main antagonists exist: Flowey and Chara, though Asriel may count as a possible third.

    What gender is Napstablook? ›

    Napstablook is a character from the video game Undertale. They are non-binary.

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