Welcome to the world of Undertale! From Papyton's child to new alternate universes, our Undertale OCs are a sight to behold. Explore characters from different Undertale AUs and even those that expand the original universe. Meet Temmie or discover an Undertale yellow soul. Dive into the multiverse and see how fans interact with their favorite Undertale characters. Love creating? Share your own OCs in this amazing community!

Undertale OCs (277 characters)

FAN
@ChocoChan
The brother of a witch, the matchmaker from heaven... How ironic.Eros is the brother of Spectral and a Skeleton from Snowdin, who loves to bring monsters together. His job is basically finding significant others for lonely monsters!Just lik...
#skeleton
@Cactuz
(Just saying this is MY au for anyone wondering)An au I have started to plan and hope to complete since I'm a master at procrastinating . This is the Sans of this au, I haven't really made anyone else yet except for frisk and papyrus but i ...
#undertale
##undertale au
##undertale
##art
##character design
##design
@Deadxbush
 A man from our world fallen into his own creation and reborn as a character in the very story he wrote. A skeleton monster carrying a human soul, the saviour of his kind and the royal magician.
#undertale
FAN
@CherEncrette
Independant of the Player, they have a surprising ammount of personality.They are headstrong and stubborn, but sensitive and very perceptive on an emotional level.Due to a light sensitivity, their eyes are always squinted or closed. More re...
#undertale
##undertale au
#undertale au
#utau
##utau
@Lunarstreams
Leon is a modern Fire Mage. Though he's strong and has a high level of Mana, his magical skills are fairly average. He had prioritize self control over refining techniques & effectiveness. He's currently in an open relationship with Ervin, ...
#undertale
##undertale
##undertaleoc
##undertale au
#fire mage
@diavlo_MTTs
Leandro is a teenager boy that discovered Mettaton in his first show. Since then, he has fallen in love with him and everything about him.Before that, he was nothing but a nerdy guy with no friends that would spend all his day on chatrooms ...
#undertale
#yumeship
@pwuppybeetle
ANT0NYMPH is basically the definition of Cringecore / Scenecore fan. ANT0 is easily excited, but gets serious when necessary.Though since ANT0 is an INK VARIANT, when he doesn’t have his emotions, he has a very blank look. ANT0 gets his emo...
#undertale
#sans oc
#sans au
#antonymph
#cringe oc
FAN
@SUNFL0WERZ
☆゜・。。・゜゜・。。・゜★ Glitter sans is from glittertales (I hope glittertale isn't taken) were everything is just glitter and some kawaii too that really it and simple ・✦▭▭▭✧◦✦◦✧▭▭▭✦ ・ Fun facts and moreGlitter sans always try to avoid using magic ...
#undertale
##sans
#sans
FAN
@Lunarstreams
One of the few monsters who's versed with knowledge about their sector of the multiverse, Kaleos. In their own AU, they're a force not to be reckoned with. Should they leave their multiverse & enter someone elses multiverse, their stats & p...
#undertale
##undertale
##undertaleoc
##undertale au
FAN
@CherEncrette
A lazy skeleton monster with a taste for bad puns and greasy food. Has a knack for getting himself into trouble, whether he wants to or not. He is infinitely patient and notoriously petty, with a vicious thirst for justice. Tame as he may b...
#undertale
#sans
#utau
#undertale au
##utau
@tornadoUFO
Gen is a Skeleton also previously known as Sans, his nickname came up aftereveryone in the underground noticed how "Gen"erous and helpful he was with ever citizen of Snowdin and other parts of the Underground. he has a scar on his right eye...
#undertale
##undertale
#undertale oc
##undertale au
#sans au
##sans
@thatstupidskitl
this is my undertale oc, Oli! He is super kind, honest, and silly overall! she loves to play horror games.once, they were a normal, scene ish (at least scene-wanna be) nerdy teenager when on a hike, they fell into the underground on acciden...
#undertale
#undertale au
#undertale oc
@Xyo
after a loooong ride in a..Elevator, you arrived at R3 only to be met by a huge theater?, you walked inside- a spider monster dressed as a magician- doing tricks in front of little real spiders- the spiders applauding, (pacifist run you end...
#undertale
##undertale au
##undertale
FAN
@GRXVExDEXLER
Some dick with a big back story. He does not give a shit what he says. he secretly cries a lot when he's alone. He drinks Italian dressing. He is a backup killer in colossalverse. He will probably be single forever ever since his partner co...
#undertale
##sans
#undertale_au
##sansau
@KibbleNS
#undertale
#Oc
##the sun and moon show
#Solar Tsams
@Lunarstreams
#undertale
#diedre!tale
#valor!tale
#papyrus
##undertale au
@eclipsissolaris
The Sans from my own undertale au, DA!Underfell. He was created by Chasm Gaster, along with his brother Void, to be a monster vessel for a human soul.He was given the soul of DETERMINATION, while his brother Void was given PERSERVERENCE.Lon...
#undertale
#undertale oc
##undertale au
#sans aus
#sans oc
@S3izures
CGB-IMP03 / Tool The equivalent of a kicked puppy personified as a humanoid.Personality An anxious and paranoid shapeshifter who has grown attatched and dependant on his handler and found family, Cerulean.He's very difficult on himself, oft...
#undertale
#roleplay-inspired
#undertale au
@MWILKSHAK3
#undertale
#Sans
#undertale oc
@war_willow
they are very silly and they are actually in love with one of my friends OCS aka whiteout! 
#undertale
##moth
##undertale
##undertale au
@InkWolfOnline
Reader!Sans Is an outcode that travels the Multiverse and hops between AUs. As he has a special connection to the Readers, not only is he capable of hearing them like other outcodes such as Ink and Error, but he can allow them to reside wit...
#undertale
#undertale oc
#sans oc
#skeletonoc
@Daruyka26
#undertale
##skeleton
##sans
##undertale au
FAN
@GreenKindness
A somewhat over enthusiastic monster living in Snowdin, Forum is a relentless optimist who aspires to join the Royal Guard. She is cheerful, hyper, and very dedicated to what she does, no matter what it is. Forum has a remarkable talent at ...
#undertale
#undertale au
#undertale oc
FAN
@Inkspirational
He's an explorer who often travels on a sort of hovering crescent moon made out of his magic!˚₊‧꒰ა . —————˗ˏˋ ✮ ˎˊ˗ ————— ˖ ໒꒱ ‧₊˚He's 24 ☆ 5'0 ☆ pansexual ☆ skele˚₊‧꒰ა . —————˗ˏˋ ✮ ˎˊ˗ ————— ˖ ໒꒱ ‧₊˚He's a bit still like- new so I'm just j...
#undertale
#stinky
#star
#my shyla
@Under-GrowthAu
My main au is growth sans, he is a carnivore skeleton with deer like antlers and sharp curving fangs. He aggressive if you run but can be pretty nice. He is larger than other sans aus, being about 6’5 at the tip of his antlers. When he ment...
#undertale
#undertale au
#oc
#fandom
FAN
@CherEncrette
Undyne is Waterfall's Chief Ranger, and a significant member of the Underground Parks and Protection Service (or UPPS).Since she had no parents, she and a few other children were raised by Gerson in Zone 2 (Waterfall), where she was taught ...
#undertale
#undertale au
##undertale au
#utau
@ChocoChan
🔮''- Be yourself, no matter what they say -''🔮 A bunny with crystal parts was sitting on a cliff near Snowdin, watching the snow slowly falling down to earth. She was wondering about the future, and how everything will proceed. A familiar...
#undertale
@Xyo
you'll know about papyrus at snowdin when sans gonna tell you alot about him , he's allways worried about him and about you because he know you will be turn into piece if you get seen by him , you'll eventually meet papyrus at the king's ca...
#undertale
##undertale au
##undertale
@Lunarstreams
The first guardian and entity of Kaleos. Though forgotten by most, she was the originator of Chaos and Harmonic magic, the first magic user. She strove to be well known and seen in various worlds. The Mortals and Entities knew her by the na...
#undertale
##goddess
#entity
@Xyo
after saying bye to the two caretakers sister of the ruins you're meet with a snowstorm , you walked , walked and walked to find a kind of stand, a skeleton was talking to flowers.?, in the middle of ton of same identical flowers he was tal...
#undertale
##undertale
##undertale au
@YourLocalSkitle
My UTAU Sans created to be a mix of Horror, Asylum, and Swap Sans! Not a happy go lucky energetic skele like most people think. Usually an empty-headed, snarky, and sassy freak /pos
#undertale
#oc
#utau oc
#utau
#Sans
@Viola_Moreels
Flaur is the definition of “ He's a 10/10, but has 69 different mental illnesses and is banned from most public places”Flaur is a professional musician and comedian, known for his chaotic and larger-than-life personality.With a penchant for...
#undertale
#sans
#undertaleoc
#oc
FAN
@nxptoons
Owns a Library in SnowdenFrequents the Waterfall to collect echo flowers to make accessible books for the blindBest Friends with Lester "Owes Sans a comedic favor"
#undertale
#dnd
#dungeons and dragons
#d&d
@Xyo
(making other characters later, ask me who to do next)frisk was born in a rich family on the board of a small village, wich was situated close to the place she allways wanted to go , Mount Ebbot, her parents was very concerned about their s...
#undertale
##undertale au
@ChocoChan
🌀~~- Don't get lost in the Void -~~🌀 As you stepped deeper and deeper into waterfalls, you had the feeling you were followed. But in fact, you followed someone. Something, dragging you deeper and deeper into this place.Then you saw this d...
#dragon
@S3izures
Have you ever wondered what it's like to live forever? Don't. You really don't want to know. Haha. I'm being fucking serious.Personality Hypocritical, cynical, and not so easily trusted. Doppelganger is far from a hero and even farther from...
#undertale
#utmv
FAN
@procell0us
#undertale
#undertaleoc
#utau
#utau oc
FAN
@GreenKindness
Elise is an introverted kid with a constant need for structure and order. She often travels the Multiverse on missions from Luna, but never stays in any AU for long. While her SOUL was patience as a child, as she grew, it turned to a rare d...
#undertale
#undertale au
#undertale oc
FAN
@ChocoChan
Many fear you, many think you're the devil's servant. But you still have a heart of gold...Snaw is a Crow Monster living in the Dunes. She is a cowboy feared by many, thanks to her cold aura and her creepy looks. However, North Star (Canon ...
#oc x canon