UNDERTALE is an indie RPG created by developer Toby Fox about a child, who falls into an underworld filled with monsters. Their only weapon being their DETERMINATION as they try to FIGHT or ACT their way out. Will you show monsters standing in your way MERCY, or slaughter them all?
How old are the characters?
I was thinking about this a lot recently. I don't know why. So here are my approximates so far...
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All of the characters are at least older teens or adults.
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Except for Frisk, who is around eight.
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Since Toriel refers to herself as "an old lady", we can infer that she and Asgore are both older people.
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Undyne and Alphys are around the same age.
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Sans is older than Papyrus by maybe four or five years, and is probably about the same age as Undyne and Alphys.
Now it's your turn! Tell me how old you think the characters are, it can be a number or just like a set headcanon.
My headcannons: Frisk: 8 Asriel and Chara: 11 or 12 Toriel and Asgore: Hundred of years Sans: 20 Papyrus: 17 Undyne: 27 Alphys: 40 Muffet: 27 Mettaton: 18 Napstablook: 18 (This is just my opinion please no arguement)
These sound about right
Monster Kid (Same age as Frisk)
I think Sans, Undyne, Alphys and Papyrus are somewhere around 19-30
Before I start saying my opinion, let me say two things. One, these are my personal opinions and what I've came to believe as reasonable age ranges. Two, this is going to be a very long post. Tldr at the bottom.
Frisk: 9-13. Just by looking at Frisk, we can assume they're not a teen yet. They also act mature in their thoughts and actions. They're above the toy age, is old enough to be treated seriously by adult monsters, and is confident and mature enough to not literally flee on every encounter and kill monsters mercilessly.
Toriel: Physically, she's probably in her thirties or forties. As for age, based on my research and looking at the humans clothing in the slight pictures we get of them, the war would've taken place in the medieval age between 1000 and 1250. That means Toriel, as well as Asgore are well over 1000 years old.
Undyne: 25-35. Undyne is the captain of the royal guard which places a high responsibility on her shoulder which would only be given to somebody of around this age and must've taken at least half a decade to meet the qualifications. She also has a little bit of immaturity which makes me believe she's in her early thirties at most and also is a warrior that seems to be in her prime so I doubt she's like 42.
Alphys: 27-35. Like Undyne, she has a job requiring a lot of responsibility and a lot of work to get towards. She also is a bit immature with her anime obsession, and has a crush on Undyne implying similar age.
Mettaton: 20-25. He's definitely an adult but most likely a young one as he's egotistical, eccentric, has a desire to be perfect, and as he was worked on by Alphys, I doubt that he's older than her.
Napstablook: 20-30. As he's Mettaton's cousin, he cant be too different from Mettaton's age. He seems to be living in a rather shaggy and cheap house which means he's probably young and maybe has only recently moved out and doesn't have much money. The only reason he may be older than Mettaton is that he acts more mature.
Chara: 12-15 at death. If the war took place in 1100, then one eighth of time between that and 2017 would make Chara over 800 by the time Frisk comes. As Chara is literally given a knife for their birthday, they're obviously not too young and deemed too young to play with knives. They also have a knowledge of knitting which implies motor skills above the age of 7. What makes me think they seem old is that they're willing to commit suicide for a friend which shows they are mature enough to have a large sense of duty and self-sacrifice. Also funny to disturbing sense of humor.
Asriel/Flowey. 11-14. Considering Asriel and Chara get along so well and plan things together, and we see both of them together in pictures, we can see that they're around the same age. We don't know that Asriel has the same sense of sacrifice as Chara so I'm taking a year off his age. As Flowey, over 800 years old, and with the resets, god only knows.
Papyrus: 18-21. As Papyrus is not suspicious why he's still in training stage and not recruitment, he's probably around this age. He seems to be very confident so most definitely past his school years where most insecurities dwell. Although, his immaturity makes me hesitant to put him past this age range. He also is likely a sentry as his brother is, and considering he's not a royal guard yet and catching a human is his life goal, right now it's likely he's settling for sentry and if he's a sentry then he's most likely at least 16-18.
Sans: 23-30. We know Sans has a background of engineering as he has a machine in his special Easter egg room. If we assume he has a Masters Degree, then that means that he's at least 20, but he must be older than 21 as he's at Grillby's which is the Undertale equivalent of a bar or pub. As it's likely that Sans and Papyrus grew up without parents as they're not alive in the present day when they should only be in their fifties. Based on his maturity, it's safe to assume that he's the older brother who raised his younger one Papyrus. That means he's at least 4-5 years older placing him at about 23, but he's likely even older thanks to resets and maturity. Although he's lazy, he doesn't show any signs of being of old age.
Muffet: 23-35. She has her own business, kind of, is a baker, kind of, is a mother figure to spiders, is old-fashioned and has a questionable sense of humor. That's really all that we know about her. That being said, she still seems to be in her prime.
Grillby: 35-45. We also don't know much about him either. Though we can infer a few things. One, he owns his own business and it's a bar which puts him at at least 21 and probably at least 23, two, he has a daughter. We see a green flame monster, seemingly a teen, (let's say 15) that looks much like Grillby in Hotland. His maturity, attitude, and the average American age of becoming a father all point to him being in his early forties if he had a daughter at 27, the average age to become a father in 2017.
Tldr: Frisk: 9-13 Toriel: 900-1200. Asriel: 900-1200. Undyne: 25-35. Alphys: 27-35. Mettaton: 20-25. Napstablook: 20-30. Chara: 12-15 at time of death. 800 in the game. Asriel/Flowey: 12-14 at time of death. 800 in the game. Papyrus: 18-21. Sans: 23-30. Muffet: 23-35. Grillby: 35-45.
Its funny that most of these posts have similar headcanons on ages, and they all make sense to me. Good job.
Asgore, Toriel and Gerson are thousands of years old if we take Bratty's quote about monsters being trapped for millennia at face value. There's a chance she's making an hyperbole but we can't know because Toby Fox decided to make this timeline as vague as humanly possible.
I'd say Papyrus is on his early 20s, Sans, Alphys and Undyne are on their mid 20s (with Undyne being 4 years older than Papyrus).
Asriel and Frisk are children. I'd say somewhere between 10-13. Same applies for Chara, who's extremely smart and has a wide vocabulary, but somehow confused buttercups and cups of butter, so it could be on the older side.
Napstablook knew Toriel when she was still queen, so they're probably at least a hundred years old or something. We don't know if Mettaton has seen a human before Frisk so I don't think I can really put an estimate on his age, but I generally say he's on his 20s.
Well chronologically, toriel and asgore are hundreds of years old. Biologically/physically would refer to how old they were when they gave birth to asriel plus how old asriel was when he died. By low end, boss monsters could stop aging at the age of 18 (young adult) and the age in which kids learn right and wrong is at least 8, 18 + 8 = 26-33 years old. High end they could stop at 40 and asriel could have at maximum the age of 14 until he will eventually start puberty. 25-40+14= 39-54 years old biologically.
So, their physical/biological age range for them is 26-54. This might be differemt since monsters could age different and have a longer life span.
the year that undertale takes place in is unknown for example the intro cutscene revels that chara fell in the twenty tens and after chara and asriel died say a year later six other humans also fell over a unknown period of time the only real clue of the ages of the characters are their undernet handles CoolSkeleton95 StrongFish91 and NAPSTABLOOK22 i don't think any other charaters have any clues to their age
ok lets say chara fell down in 2010 and died in 2011 an the next six humans show up one year apart with frisk showing up in 2017 if the numbers mean of their undernet handles mean anything this means papyrus is 22 undyne is 26 and napstablook is 95 at minimum I find this unlikely though
Whilst this is like- really late, I'm gonna give my idea at least on the main cast, though it may seem a little bit out of wack since in my head canon, the release date of UT is the day in which Monsters would've returned to the surface. (Though I have my own headcanon in terms of the events and how they play out which might be different to the established one but eh, just for fun.)
Asgore: Centuries
Toriel: Centuries
Chara: 14 when they fell (1914), 15 when they died. (1916)
Asriel: 14 upon meeting Chara, 15 at death.
Flowey: Probably decades, I dunno, you judge a flower that can reset time and guess it's age-
Frisk: 13
Sans: 21
Papyrus: 20
Undyne: 25
Alphys: Also 25
Mettaton: 27
Napstablook: 24
Monster Kid: 12
Frisk- ambiguous dependent on the player's age, or maybe like 10
Chara- 12 or 13
Asriel- 11 (or, considering that his parents are most likely millenia old, the equivalent of that age in monster/goat years)
Toriel and Asgore- Millenia, but in behavior and thinking maybe 50 something
Burgerpants (the only canon age)- 19
Alphys- 23
Undyne- 24
Sans- mid- to late twenties
Papyrus- late teens (17-19) to early twenties
Mettaton- probably wasn't made more than a few years ago but with the brain of someone in his twenties
(THESE ARE ALL HEADCANONS EXCEPT BURGERPANTS)