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Characters / Deltarune: Lightners

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Characters of the world of Deltarune who live in the Light World.

As with the main page, all spoilers are unmarked. Due to the ties of various elements and cast members derived from Undertale and the game expecting you to at least have some familiarity with it, spoilers involving Undertale are also unmarked.

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The Dreemurs

The adopted younger sibling of Asriel, and the only known human present in Hometown. They have their own character folder, which can be found here.


"Kris, if you do not wake up, we will be late for school!"

Kris and Asriel's mother. She is also a teacher for a younger class at the school.

  • Adaptational Wimp: Toriel seems to lack her Undertale counterpart's signature fire magic and experience in dangerous situations. In Chapter 2, she stresses and worries about her slashed car tires, whereas the Undertale Toriel would likely have taken matters into her own hands.
  • Anger Born of Worry: Toriel becomes very concerned when Kris didn't leave school on time, and scolds Kris if they call her on the phone.
  • Calling Out for Not Calling: Her first reaction after school is out is to admonish Kris for not calling Toriel to tell her where they were. She drops it when Kris tells her they were hanging out with a friend.
  • Continuity Nod: In Kris's specially designed cell in Queen's castle, you can spot two tiny Toriels playing the piano, both wearing the original purple robe she sported back in Undertale.
  • Demoted to Extra: In Undertale, she was the first boss and a major introduction to the themes of violence, mercy, and the game's relationship with the fourth wall. Here, she's just your character's mother and, as of Chapters 1 and 2, has no real plot significance. However, the end of Chapter 2 implies she will have a bigger role in the next chapter, as the Dreemurr house is swallowed up by a dark fountain created by the soulless Kris, with Toriel inside.
  • Empty Nest: She's worried that when Kris eventually leaves to go to college, she'll be alone, so she understandably changes the subject to happier times when her kids were younger.
  • Facepalm: She has one after realizing Kris ate her butterscotch-cinnamon pie during the night.
  • Former Teen Rebel: Was apparently a party animal in her youth, according to Rudolph Holiday.
  • Good Parents: She dotes on Kris, letting them sleep in, and only punishes them with an early bedtime for staying at school too late with a friend.
    • She also loosens up a little around Susie, going out of her way to help her be more comfortable in the Dreemurr household, and even says a light swear around her.
  • Gospel Music: Toriel's deeply religious and loves to listen to hymns and prayers.
  • The Maiden Name Debate: She keeps Asgore's last name despite being separated from him. If you call home with Kris's cellphone in the epilogue of Chapter 1, Toriel will answer the phone with "The Dreemurr residence," despite Asgore no longer living there.
  • Morality Pet: Susie is very respectful towards her. Even before her Character Development in Chapter One, she considers Toriel to be a good mom, and if Kris tries to leave school, she'll tell them not to, because their mother would "have a heart attack."
  • My Beloved Smother: She dotes on Kris constantly. Not being able to account for where they are for a few hours prompts her to threaten punishment, until they explain they were spending time with a friend. Not to mention she leads Kris into school by the hand despite Kris seeming to be about middle-school age.
  • Parental Favoritism: While she's very doting on and concerned for Kris, there's lots of little signs around the house that Asriel is the favoured child between the two of them for Toriel. It's probably not out of any malice or neglect on her part and probably has more to do with Asriel being The Ace who casts a very long shadow on his seemingly Empty Shell of a sibling.
  • Precision F-Strike: When Kris takes a while to return from the bathroom at the end of Chapter 2, her patience starts to run thin and she wonders where the hell is Kris out loud. Susie, thinking Toriel's a pretty swell kinda straightforward mom deal, freaks out a little.
  • Pushover Parents: Downplayed, but her punishments towards Kris's misdeeds tend to be rather light. In Chapter 1, she simply sends Kris to bed early after the latter comes home late from school without so much as calling. In Chapter 2, she doesn't even so much as scold them when it's revealed that they ate all the pie she made, despite being told not to. Later in the chapter, she doesn't seem to be worried about Kris's... dissociative problems, only telling Susie that "they do this sometimes".
  • So Proud of You: She's nothing short of delighted that her youngest child Kris is making friends with Susie.
  • Suppressed Rage: Toriel does not appreciate Asgore using Kris as a proxy to deliver flowers; she comments that she'll "find a good place" for the flowers. This place is the trash bin in the house.
  • You Know What You Did: She mutters a variant on seeing Asgore's bouquet.



"After the excitement of university... Will he still enjoy coming home to this little town...?

Kris's older brother who's away at college, but is coming home to visit soon.

  • 100% Adoration Rating: People have nothing but nice things to say about him, and keep asking Kris when Asriel is coming to visit from his college. The only person who seems to mildly dislike him is Catty's dad, because Asriel doesn't like his wife's cooking.
  • The Ace: His half of his and Kris's shared bedroom is littered with sports trophies and achievement certificates. His old jersey is the only thing left in his clothes drawer. He was also a prominent member of the local church choir, to the point where Father Alvin says you can actually hear the hole where his voice used to be when they sing now.
  • Age Lift: In Undertale, Asriel is about 8 to 12 years old, only taking on an adult appearance temporarily when fought as the final boss. In Deltarune, he's implied to be at least 18 years old.
  • Chick Magnet: If Bratty and Catty are to be believed, he was romantically involved with both of them to some extent in the past, possibly at the same time. He was Catty's date to the prom in high school (which ended in disaster thanks to her antics), and gave Bratty her first kiss in a game of spin the bottle.
  • Cool Big Bro: He's implied by several people to have been one toward Kris, he apparently liked to include Kris in everything he does as often as he could and he even assisted Kris in some of their pranks. Toriel and Asgore also seem to believe Kris adores Asriel enough that Kris is looking forward to him visiting just as much as their parents are.
  • Covert Pervert: Implied; Kris finds one of Asriel's library books, on How to Draw Dragons. The cover is described as having a scantily-clad character on it, and Kris comments that their brother probably won't return it. Later, if you visit Asriel’s room in Queen’s prison (presumably furnished according to his search history, like everyone else’s, but Kris’s eyes are closed) with Susie (apparently a dragon, according to the Mane Axe) back in your party, something in there outrages her and makes her comment that Kris had better hope she never meets him.
  • Demoted to Extra: In Undertale, he was the main antagonist (as Flowey) and a major player in the backstory whose actions define Asgore's motives. Here, he's just your Cool Big Bro and The Ghost (though a number of tropes around Ralsei reference Asriel's former place in the story; see his entry for more details).
  • Former Teen Rebel: In a Rule-Abiding Rebel kind of way. He used to get up to some mischief with his sibling Kris and other kids their age around town, but was well-behaved for the most part.
  • The Ghost: So far, he's only been mentioned in conversation and descriptions. It's assumed he's still a goat-like creature as in Undertale, since Toriel mentions that Kris wondered when their horns were going to grow in like Asriel's.
  • Has a Type: Dragons, and maybe specifically purple ones. Chapter 2 mentions that the copy of "How to Draw Dragons" was rented by him. Later, Cyber World features rooms tailor-made to every Lightner's search history, including his. Backtrack with Susie, and she'll be astounded by what she sees, though we're never given a direct description.
    Susie: HAHAHA!!! Man, you better hope I never meet him...!
  • In-Series Nickname: Several characters refer to him as "Azzy", a nickname previously exclusive to fan works.
  • Mythology Gag: Checking his computer in Chapter 2 reveals that he had come up with designs for his own video game, including a final boss with giant rainbow wings. In Undertale, Asriel himself is the final boss, and his final form has giant rainbow wings.
  • Nice Guy: As Chapter 2 reveals, he was so nice that he'd go to confess his "sins" at church, like feeling horrible that he "had to jump off the lizard to go higher". A description about his game console also implies that he'd always give Kris the pristine controller while he stuck with the knock-off.
  • Parental Favoritism: It's subtly implied that he's the favored child of at least Toriel's between him and Kris. His side of their bedroom is adorned with all sorts of decorations and has a computer, while Kris's only has a wagon and a birdcage, and hidden away under Asriel's bed is a game console with one proper controller and a knock-off one, though he did use the knock-off himself to be nice to his sibling.
  • Significant Anagram: The Dark World character and main party member Ralsei's name is an anagram of Asriel. The connection between the two, if one even exists, has yet to be determined.
  • The Social Expert: He's apparently something of a social butterfly in this incarnation, and pretty much the whole town knows and adores him. He's such a social expert that Pizzapants was a close friend of his before he left for college. PIZZAPANTS!
  • Spared by the Adaptation: He's alive and well and everyone loves him, so he's already doing much better than his Undertale counterpart, who ended up either forced to turn back into Flowey, viciously murdered, or left completely broken by Frisk.


"Perhaps when Asriel comes home... We could all go to the diner, just like old times..."

Kris and Asriel's father, and the kind owner of a small flower shop. He had a falling-out with Toriel some time in the past. The more things change...

  • Adaptational Heroism: In Undertale, Asgore was a reigning monarch who murdered children and forced them to fight him back, while leading all his subjects to believe that his quest to steal the SOULs of humans to be righteous. In Deltarune, he owns a flower shop and the worst he's shown to do is put his ex-wife in an awkward situation in public.
  • Adaptational Wimp: Much like his ex-wife, there is no indication of Asgore being the ultra badass leader he was in Undertale. He's desperate, awkward, messy, and non-authoritative. In Chapter 2 however, it is revealed that he used to be the respected chief of police, so this trope may be Downplayed in future chapters.
  • Amicable Exes: Surprisingly, in Sans' store, it's possible to trigger a cutscene where he and Toriel bump into each other and both speak to each other with a fair degree of politeness. This suggests that Toriel doesn't necessarily hate Asgore, she simply isn't interested in his attempts to rekindle their previous relationship.
  • Badass Baritone: Once again, his Voice Grunting is very deep; it's unclear how much of a badass he is in this timeline, but at the very least, he's still big, burly, and strong.
  • Butt-Monkey: Everything seems to be relatively cheerful on the surface with him, but Toriel still dumped him and throws his bouquet gifts into the trash. Checking the backroom shows that he not only barely has a bed, but is also late on rent, making it seem like he's going to get evicted in the very near future. Nothing seems to go right for Asgore.
  • Call-Back: His introduction in the epilogue mirrors what happened when the player finally met him in Undertale; Asgore, with his back to the protagonist, asks for a moment while he finishes watering flowers, slowly turns around, and expresses surprise at seeing the protagonist. However, whereas the occasion in Undertale was very dark, here, it's sweet.
  • Call to Agriculture: Owns a flower shop and has several flowers in containers in his living space, and as Chapter 2 reveals, he was previously the chief of police.
  • Companion Cube: While talking to Sans at his store in Chapter 2, he wonders with Sans about what flowers he should give to win Toriel's affection again. Sans jokingly suggests he consult the plants themselves, and Asgore assures him that the flowers in glass tend to be the first ones he goes to for advice.
  • Da Chief: A newspaper clipping in the police station establishes that he used to be the local Chief of Police, but was removed after an unspecified incident. This is apparently how an overzealous rookie like Undyne got the post, given the only known alternative would have been Napstablook.
  • Demoted to Extra: In Undertale, he was the (nominal) main villain and spent the whole game being set up as the final obstacle on your journey. Here, he's just your dad, and he doesn't even get any screentime until the Playable Epilogue.
  • Disneyland Dad: A Type I example. He loves Kris and Asriel deeply, and still has (unreciprocated) feelings for Toriel. He doesn't have custody of his children and it seems like he rarely sees them, but when he does, he always tries to do something nice for them, even though he usually lacks the means to. In this case, his "Disneyland trip" is taking Kris and Asriel out for dinner when the latter returns home from college.
  • Empty Fridge, Empty Life: The back of his flower shop is shabby and dreary, and his fridge only has a jar of pickles in it.
  • Exiled to the Couch: Implied. When Toriel suggests Susie stay for a sleepover, she remarks that their couch "is used to being used as a bed".
  • For Want of a Nail: As the Dreemurs are just regular citizens in this incarnation instead of being highly-respected royality, Asgore barely recieves any help from what would've been supportive citizens of his kingdom in Undertale, resulting in him having to survive through a terrible living situation with an upcoming eviction if he doesn't pay his bills in time.
  • Gentle Giant: He's still as tall and massive he was in the original iteration, and as kindhearted as you would expect.
  • The Glomp: He's very happy to see Kris, and greets them with this even though they don't like it.
  • Hair of Gold, Heart of Gold: Blond and big-hearted; he gives Kris flowers to take to Toriel despite their breakup.
  • In Spite of a Nail: None of the circumstances that led to his estrangement from Toriel in the Undertale universe appear to be present in Deltarunenote , and yet they are still estranged and divorced in this incarnation as well.
  • Jealous Romantic Witness: Subverted. Chapter 2 gives us a red herring in which Asgore interrupts a flirty conversation between Sans and Toriel and then approaches Sans in a seemingly aggressive way ("you know what I want, bone man"). However, it turns out that he just wanted some free pickles. There's some awkwardness, but ultimately no indication that either Asgore or Sans are jealous of each other when it comes to Toriel.
  • Lonely Bachelor Pad: He's separated from Toriel and doesn't have custody of Kris or Asriel, and his house above his shop has little more than a bed, a fridge, a TV, and containers for several flowers.
  • Mythology Gag: His flower shop's backroom has six colored flowers that correlate to the SOULs from Undertale, and a particular golden flower as a seventh at the lead (corresponding to the description of the flower that, in Undertale, became Flowey).
  • Nice Guy: He's very kind, and as far as we know, he didn't murder any children in this timeline.
  • Noodle Incident:
    • Toriel and Asgore still ended up divorcing, but it's not known exactly why they did in this continuity.
    • Some papers in the police station in Chapter 2 note that he used to be the chief of police and was removed from the position, likely in disgrace, due to some undisclosed incident.
  • Real Men Wear Pink: Still in his casual pink, floral-patterned shirt from the end of Undertale.
  • Shout-Out: Rudy got a bouquet of roses in glass from Asgore during his hospital stay in Chapter 1, prompting him to joke that they can't reenact Beauty and the Beast since they're both beasts. When he mentions to Sans that he keeps his flowers in glass during Chapter 2, the both of them agree that it's very similar to "that movie".
  • Stupid Good: He insists on giving away his flowers for free instead of selling them, even though he's seriously behind on his rent.
  • Talking to Plants: He's talked to his flowers in order to figure out how to win back Toriel's heart.
  • Visit by Divorced Dad: Inverted. Kris can visit him near the end of Chapter 1.
  • "Well Done, Dad!" Guy: Befitting his downtrodden non-custodial divorcee status, he tries extra hard to earn his kids' and his ex-wife's respect, but is implied to often come up lacking. His dialog with Kris suggests that Kris is normally embarrassed by him.

The Holidays

The second smartest student in the class, and Kris's childhood friend. Her folder can be found here.


Rudolph "Rudy" Holiday
"Well jingle my goshdarn bells! Looks like Krismas came early!"

Noelle's father, and husband to the mayor. Currently hospitalized for an unspecified illness.

  • Affectionate Nickname: He sometimes calls Kris by the name "Krismas".
  • Be Careful What You Wish For: Chapter 1 has him say that he wishes Noelle wasn't so "defenseless", wanting to get out of the hospital so he can protect her. A Chapter 2 Weird run can certainly make her stronger, at extreme mental cost to his own daughter with absolutely no idea of any of it.
  • Catchphrase: Always voices a willingness to kick people's asses, whether it be over how Berdly treats Noelle or Sans giving Asgore free pickles out of pity. He also does it to Susie as a joke thanks to his daughter's crush on her.
  • Definitely Just a Cold: He puts on a brave face when talking to Noelle and Kris, but certain dialogue cues strongly hint that whatever he's been hospitalized for is terminal.
  • Fun Personified: Even when bedridden, he's full of good humor and loves to crack jokes.
  • Gay Bravado: If you inspect the bouquet of roses, he jokes that Asgore was trying to go for something Beauty and the Beast themed when he points out that they're both beasts. Inspecting it again has him say that he should have just asked him out to prom outright. It's hard to say if it's this trope or if he's seriously flirting with him, but since he has a wife and considers Asgore a friend, it's most likely the former.
  • Gentle Touch vs. Firm Hand: Rudy considers his congenial attitude to his daughter a way to balance out her more strict mother.
  • Good Parents: He's fully supportive of his daughter and loves her dearly, even if he's bedridden and can't do much for her in his current state. The affection is mutual.
  • Malicious Misnaming: Calls Berdly "Nerdly" and wants to kick his ass. From Berdly and Noelle's backstories in Chapter 2, it's likely this is due to Berdly taking advantage of Noelle's status as Nice Girl to look smarter than he is.
  • Meaningful Name: A certain holiday-themed reindeer may come to mind. He doesn't have a red nose, though.
  • Nice Guy: He's friendly, jovial, and generally pleasant to be around. It's not hard to see where Noelle gets it from.
  • Old Friend: He's been a friend of Asgore and Toriel since their college days. Asgore even chose him as best man for their wedding.
  • Overprotective Dad: He jokingly pretends to be one in Chapter 2, telling Susie that he'll kick her ass if she tries anything with his daughter. In reality though, he's been giving Noelle advice on how to ask her out.
  • Pie in the Face: According to his backstory, Toriel was a "total nut" who once hit him in the face with a key lime pie during a party in college.
  • Shipper on Deck: Tries to get Noelle past the Can't Spit It Out phase involving Susie, and in Chapter 2's Weird route, he actually keeps Susie in his hospital room briefly where he gives her the lowdown on his daughter's interests off-screen. Susie, being Susie, finds it both informatively neat and also confusing.
  • Spared by the Adaptation: In the eventually released dialogue of Undertale's Alarm Clock App, King Asgore reminisces about how he and his late friend Rudy would distribute presents together around Snowdin. In this setting, Rudolph is still alive, but hospitalized.

    Mrs. Holiday 

The Mayor of Hometown, mother to Noelle and Dess, and Rudy's wife.

  • 100% Adoration Rating: Downplayed. Those who care about politics in Hometown really like her, but plenty of other people don't really care, since it's a relatively slow and small town where not much happens. It's also noted that many people are not a fan of her harsh personality but because she's a very hard worker who does a great job at running the town, she has run unopposed for years.
  • Gentle Touch vs. Firm Hand: Her own husband openly thinks she goes pretty hard on their daughter. Rudy views this parenting style as complimentary to his own, but too much for Noelle when he's laid up in the hospital, and it likely contributes to her timidity.
  • The Ghost: In the first two chapters, as her office is blocked off and she's only referenced briefly in the Hometown sections. Even her name goes unmentioned, with her name on this page being speculative.
  • Parents as People: She really does care about Noelle and wants what's best for her, but also imposes strict standards for her daughter. She's so harsh that, when Noelle gets locked out of their home in Chapter 1's epilogue and is stuck behind their locked gate, she would rather continue waiting outside instead of trying to ask her mother for help while she's busy.
  • Tough Love: According to Rudy, at least. Though she does love her daughter, she has a tendency to be very harsh on Noelle, expecting her to live up to very high standards. Rudy helps to balance her out normally but given his stay in the hospital, worries that it's going to be very tough on Noelle.


December "Dess" Holiday

Noelle's older sisternote  who isn't around anymore. She used to hang out with Kris, Asriel, and Noelle when they were kids.

  • Ambiguous Situation: While Noelle's wistful tone when thinking about Dess suggests she isn't around anymore, it isn't made entirely clear why Dess is no longer present. Coupled with Noelle's unexplained trauma over snowy weather and the word "December", and it seems apparent that something happened concerning Dess some time ago, but it has yet to be elaborated as to what.
  • Batter Up!: One of the first mentions of Dess is an anecdote of her smacking Kris with a wiffle bat.
  • Big Sister Instinct: Kris once scared Noelle by claiming ICE-E was real and ate children, causing Dess to hit Kris with a wiffle bat until they stopped lying. This is implied to be Dess's usual reaction to such situations, as Noelle says that Kris is lucky Dess isn't around while Kris causes mice to scare her by failing puzzles in Chapter 2.
  • Childhood Friend: Based on what Noelle says about Dess, she knew Kris and Asriel when they were kids and used to hang out with them as well.
  • Death by Adaptation: Asgore's dialogue in the cancelled Alarm Clock App seems to indicate that she's alive and well in the Undertale universe, whereas she's either dead or missing in the Deltarune universe.
  • Early-Bird Cameo: As with Noelle, she's mentioned by Asgore by Noelle
  • Family Theme Naming: "Dess" is how one could pronounce "DEC", the abbreviation for December, making it fit with the Holiday family's Christmas-related names.
  • Foil: To Asriel. Both remain unseen, only mentioned in secondhand anecdotes, and they're the adventurous counterparts to their introverted younger siblings, who depend on them. However, Asriel is loved and recognized by the entire town, while Dess is barely brought up and only gets mentioned by her family. Kris and Noelle use every chance they get to look into their older siblings and how they're doing, but while Kris is waiting for Asriel to come back from college, Dess' status is currently unknown.
  • The Ghost: Dess is never shown on-screen. She's only mentioned by name by Noelle and Rudy, once each in optional dialogue in Chapter 1 and then during a puzzle segment with Noelle during a non-Weird route of Chapter 2.
  • Only Known by Their Nickname: It is implied during Chapter 2 that "Dess" is short for "December". The puzzle in which Noelle first mentions Dess spells out the word "DECEMBER" in its letters, and the word "December" also hit Noelle's Trauma Button during a spelling bee when they were children. The calendar in Noelle's room at Queen's castle is entirely made out of December 25th because she kept doing online searches for "December Holiday".
  • Remember the New Guy?: She and Noelle are revealed to have existed in the Undertale universe by the Alarm Clock App and Sans's Dog Shrine dialogue in the XBox One version, even living in Snowdin during the events of the game, but it's only their alternate-universe counterparts in Deltarune that actually have a major role.
  • Shout-Out: She's first mentioned hitting someone with a (wiffle) bat, calling to mind Ness from EarthBound, who fights with bats and has a very similar name.


The Bully of Hometown's school. Has her own page here.

The smartest student in Kris's class, and also the most insufferable. His folder can be found here.



The younger sister of Catty. Pays more attention to her phone than to her surroundings.

  • Amazingly Embarrassing Parents: In the epilogue of Chapter 2, her parents visit the diner she works at to cheer her on during her shift, as if it was a school sporting event. Apparently, this is a regular occurrence. She is... less than encouraged.
  • Berserk Button: Apparently, messing with Jockington is this for Catti, as Susie discovered after she stole his hat at one point; and it seems it's something Catti still holds a grudge over for Susie.
  • Cat Folk: She's a cat monster, just like her big sister.
  • Deadpan Snarker: Monotone, gloomy, and only looks up from her phone for a very short time to deliver quick remarks. She simply tells Kris "don't die" when they're asked to accompany Susie, and in the Chapter 2 Epilogue, she asks Kris if they can find an occult incantation spell to get her family to stop their loudly cheering in the diner.
  • Emotionless Girl: She's portrayed as one mainly, seemingly indifferent and bored by her surroundings. Jockington seems to be the only person she openly has actual attachment for, and even she doesn't know the reason why.
  • Family Theme Naming: Catty and Catti.
  • Goth: Her makeup and dour expression make her a dead ringer for someone going through a teenage Goth phase, and while part of it appears to be just being a Bratty Teenage Daughter, she does admit she wishes the rest of her family were either more normal, or "...more goth."
  • Goth Girls Know Magic: She previously studied magical/occult matters with Kris and Noelle, apparently separately, and says she taught Noelle “protection spells”. Monsters are inherently capable of doing magic, but Catti seems to be a particular enthusiast.
  • Hidden Depths:
    • In Chapter 2, her dialogue at the end mentions that she and Kris "studied [the] occult together", and once did the same for Noelle.
    • Also in Chapter 2, it's revealed that despite their relationship appearing one-sided and her just using him, she actually cares deeply about Jockington, calling him a "pure" and "precious" boy with a "heart of gold". And Susie refuses to enter the diner while Catti's working because Catti hates her for stealing Jockington's cap one time.
  • A Lizard Named "Liz": A cat monster named "Catti".
  • Phoneaholic Teenager: Catti is glued to her phone during class, only looking away to tell Kris she's already got a partner.
  • Right for the Wrong Reasons: Catti mentions to Kris that she senses Noelle slipping into the darkness, and that Kris needs to do what they can to protect her since they too "walk among the dark". Of course, she's talking about Noelle harboring a crush on Susie and hopes Kris's experience with Susie should help with protecting her from getting bullied, but her description also fits the hidden Weird Route of Chapter 2 and what it entails for Noelle and Kris.
  • The Quiet One: She rarely says more than one or two words at a time.
  • Service Sector Stereotypes: She's the Distaff Counterpart to Burgerpants, working the after school shift at QC's Diner as a waitress.
  • The Stoic: Always wears the same neutral to bored expression on her face.
  • Terse Talker: Usually only says one word, but is shown to be this when you can speak to her at length in Chapter 2. Where she speaks in short, almost analytical statements that are frequently only one or two words; and only very rarely breaks from it when she needs to be more descriptive with what she's trying to say.
    Catti: (About her family) Dad. Mom. Sister. Ukelele. Football games. Soap operas. Yelling. Standing on tables. Afraid of vacuums. Stupid. Loud. Very loud. and I. Studied occult. Together. ...Incantation for silence. ...Find it. Tell me.


"We SEEM different, but me and Catti have a TON, In common!"

A snake with a cool hat.

  • Cool Hat: Even lampshaded by him. Susie even stole it once because it looked cool enough to wear.
    "Kris, if I had arms...I would take off this cool hat in remembrance of you."
  • Cool Shades: Wears a pair of those all day, every day.
  • Dumb Jock: Catti gives him the apt description of, "curiosity high, intelligence low".
  • Lovable Jock: He has a knack for athleticism, and he's a nice guy who has a lot of fans in the school. Even Catti likes him!
  • Mutually Unequal Relation: His "partnership" with Catti is really him getting used as a prop by her without even realizing it. It started with her using him as a hula-hoop ring in their first gym class. Somewhat Downplayed in that he doesn't seem to mind, and she does legitimately enjoy their friendship.
  • Nice Hat: Wears a blue baseball cap, backwards.
  • Verbal Tic: His sentences, are full of unnecessary, commas. It even seeps into his writing, as demonstrated by the cross-country team poster.

    Monster Kid 

Monster Kid
"Yo! Kris!"

An armless, young reptile monster who attends the same class as Kris.

  • Ambiguous Gender: Like in Undertale, they lack any bodily features identifying them as male or female, and have never had their gender revealed in any dialogue.
  • Innocently Insensitive: They still think of Susie as a bully at the end of the game, and casually insult her while chatting with Kris, unaware of the newfound friendship between the two. Naturally, Kris takes offense to it.
  • Jerkass to One: They can't stand Susie. While more than happy to hang out with Kris, they first request the human ditches the Bully Turned Buddy without giving her a chance.
  • Nice Guy: Feels genuinely sorry for Kris when they don't get a project partner and get assigned to The Bully Susie.
  • You Don't Look Like You: A very subtle difference. In Undertale, Monster Kid's horns were on the right, but Deltarune's Monster Kid has the horns on the left, just like Goner Kid.


"tem partner with... EG!!!"


  • Accidental Misnaming: She refers to Kris as "Krisp."
  • Author Avatar: As in Undertale, she's based off of a sketch of Temmie Chang, one of the game's artists. This time, though, it also possesses her hat and hairdo, implying that this specific Temmie IS... well, Temmie.
  • Cloud Cuckoolander: Her speech patterns and behaviors are just as off-the-wall as ever. Her partner in class is an egg, and she spends her study time looking at pictures of cute boys.
  • Distracted by the Sexy: Instead of studying for "colleg", Kris finds her reading a comic with hot demon dudes in the post-game of Chapter 1. Going by her dialog, she may even think that reading that comic IS studying.
  • Mind Screw: Temmie being partners with a boiled egg seems like random humor until you find in Chapter 2 that checking on the egg lets you keep track of how many eggs you got from the Man Behind The Tree, which raises a ton of questions...
  • Obfuscating Stupidity: Similar to her Undertale shopkeeper counterpart. If you return to your class in the epilogue of Chapter 2 and talk to her, she'll yammer about going to college as usual in her signature ditzy speech, before abruptly switching to proper English at the very end.
    "tem still study... study harb!!!"
    "tem get a SMART! go to COLLEG!! achieve DREAM!!"
    "then tem become... TEM BECOME....!!"
    "Hahaha... As if you could even envision it."
  • Workaholic: She stays behind long after class in Chapter 2 to continue working on their group project.


"Partn'er? I hardly know 'er! Ha ha ha!!"

A young Snowdrake infamous for telling the most awful puns. Always speaks in a ridiculous cowboy accent.

  • Adaptation Relationship Overhaul: This time he seems to still be in his father's good graces. Knocking on his door has his Alter Kacker dad yell for him not to knock so hard... as not to hurt his beak.
  • Hypocritical Humor: Mockingly asks Monster Kid if they're too chicken to explore the mysterious bunker and if they got a beak and wings to match... despite Snowy also being a bird.
  • If You Die, I Call Your Stuff: If spoken with two or more times before leaving the classroom with Susie in Chapter 1, he asks Kris if he can have Asriel's classical, jazz and religious ska CD's should they die.
  • Jerkass: Calls Kris a "weenie" when daring Monster Kid to enter a mysterious bunker. The insult quickly earns him the ire of Susie who overheard the conversation.
  • Kansai Regional Accent: Like his Undertale counterpart, speaks in Kansai-ben in the Japanese translation of the game.
  • Missing Mom: Undertale players may recall that Snowdrake's mother had an unfortunate fate. In Deltarune, we can visit a snowflake-shaped tombstone with the inscription "Crystal; a snowy gemstone for a proud mother".
  • Pungeon Master: He tries to be, but his jokes are

Prominent Adults


"I'm the cool teacher, y'know. You're not in trouble."

One of the teachers at Kris's school... at least, she tries to be.

  • Adaptational Angst Upgrade: Inverted; unlike her Undertale counterpart, this incarnation of Alphys didn't create the Amalgamates and it's implied she hasn't done anything that caused her any similar trauma or guilt. And while here she is as much of a Nervous Wreck as her former counterpart, she does try to assert herself a bit more often; she doesn't succeed, but she is trying to improve herself and starts off in a better place than her counterpart.
  • Adaptational Job Change: In Undertale, Alphys was a scientist and engineer. Now she's a middle/high school teacher.
  • Adults Are Useless: Despite Susie being late to class (numerous times, apparently), Alphys does nothing to address it (like talking to her parents about it) and there's no indication that she has. She does not seem to be aware that Susie is a troublemaker and a bully, but this is implied to be because Susie puts effort into hiding her activities as opposed to openly doing it.
  • Cool Teacher: Tries to be. She tries so very hard to be. Unfortunately, she's so spineless that this translates to "everyone can walk all over her", meaning none of her students really seem to respect her.
  • Demoted to Extra: In Undertale, she was a reasonably plot-important character whose actions created Flowey. Here, she's just your teacher and has only a brief role in getting you to the Dark World.
  • Kindhearted Cat Lover: She leaves milk out in a saucer in the alleyway for a stray cat she never sees, because it makes her feel like she owns the cat and has something that loves her. Unfortunately there's no cat; it's Susie who's been drinking out of the bowl.
  • Nervous Wreck: She has trouble speaking in front of the class and telling students what to do, which is one of the first big hints that Deltarune is not a direct sequel, since her character arc in Undertale partially revolved around gaining confidence. In Chapter 2, Alvin mentions that Alphys is directly following the footsteps of his award-winning author and historian father Gerson, who used to teach at the school, and that she may be really suffering under the pressure of doing such.
  • OOC Is Serious Business: If the anime review in the monster town is any indication, this Alphys likes Mew Mew Kissy Cutie 2. Even more OOC, this version of Alphys is more of a fan of western comics and animation.
  • Otaku: This version of Alphys is just as much of an introverted anime-lover as the one in Undertale. When not teaching, it's alluded to that she spends much of her time sitting in her house in the dark eating instant ramen and watching anime obsessively.
  • Reasonable Authority Figure:
    • She tells Kris they're not in trouble for disappearing for the whole school day with Susie; she just wants to know where they went for their safety. Especially since Susie on the surface seems scary.
    • When Kris falls asleep in class, Alphys isn't angry, just concerned that stress might be keeping them awake at night.
  • Small Role, Big Impact: Although her role in the story is much less than in Undertale, Alphys is the one who sends Susie and Kris to get the chalk from the school supply closet and inadvertently sending the two of them into the Dark World.


"yeah, it's real nice, isn't it? especially considering i've never met you before."

The owner of a local grocery store who just moved into town.

  • Big Brother Instinct: A possible explanation as to why he's reluctant to have Kris meet with his little brother Papyrus, even though confessing the latter desperately needs friends. By greeting him as an old friend you've just raised a huge red flag inside his head. He also has this response if he was never talked to in Chapter 1 but is still asked about Papyrus in Chapter 2 as you shouldn't know he has a brother.
  • Brilliant, but Lazy: Seemingly the case as it was back in Undertale; his store is just the Grillby's restaurant from Undertale with all characters before the S scratched off and "ans" scrawled at the end.
  • Demoted to Extra: In Undertale, he was a major supporting character (and the absolutely brutal Final Boss of the Genocide route), but here he's just a minor gag character...supposedly. To those familiar with Undertale, it's clear that there's more going on with him.
  • Everyone Has Standards: He might be a Pungeon Master, but he still finds Asgore's "eggs-husband" joke so awful that he turns his back on him and Toriel.
  • I Banged Your Mom: Subverted. He slyly tells Kris he is already familiar with Toriel as he "befriended" her last night, but what he really means is that he had a chat with her when she came to the store to buy chocolate. In Chapter 2, he'll make a similar joke about Asgore.
  • I Never Told You My Name: One way to make Sans really suspicious is to ask him about his brother in Chapter 2 without having talked to him in the previous chapter, as he'll never get a chance to ask you to hang out with him.
    Sans: brother...? what are you talking about? ... ...i don't have a brother. haha, just messin' with ya. i totally do. ...though, to be honest... i never mentioned him to you, did i? ...not gonna lie. a little weird you asked. i'd never let my brother hang out with a stranger. especially not alone, or in my house. that's way too irresponsible. try to have some self-awareness, ok? meanwhile, i'll ask what his schedule is.
  • Lazy Bum: Wouldn't be Sans if he wasn't.
    Sans: oh, you've got something better to do? me too. anyway, i'll be standing here doing nothing.
  • Leaning on the Fourth Wall: In Chapter 2 (which takes place a day after Chapter 1, but released 2 years 11 months later), if Sans is asked about his plan to introduce Papyrus to Kris from the previous chapter, he says that the plan will have to wait, "maybe a day, maybe another 2 years. who's keeping track at this point?"
  • Little Big Brother: He mentions having Kris meet his "little brother," making him this to Papyrus.
  • Medium Awareness: Sans seems... off in his dialogue. If you say it's good to see him again, he states he's never met Kris before with a cheekiness that implies you've just set off massive red flags in his head, and all the rest of his dialogue options seem to specifically be designed to entrap the player, not Kris, into saying things that only someone who had played Undertale could know. Given who Sans is, though, and the implications that this is some form of sequel or Alternate Universe, this shouldn't be surprising from him.
  • Non-Standard Character Design: Inverted; Sans is the only returning character whose appearance hasn't changed at all from Undertale, having the exact same overworld and dialogue sprites and no outfit changes.
  • Old Friend: Averted; Sans probably doesn't know Kris here. He has a very interesting reaction if Kris approaches him as this, though...
  • OOC Is Serious Business: During Chapter 2, when Toriel visits his grocery and the two have a brief pun-fight, they are interrupted by Asgore. Sans turns his back on them, and when Toriel leaves, he is notably awkward when talking to Asgore, and does little to help him. The fact that the normally unflappable Sans is sufficiently put off during this scene speaks volumes about the tension around Toriel and Asgore's relationship.
  • Pungeon Master: Same as his old Undertale counterpart. In Chapter 2, Toriel visits his store and they exchange a volley of egg-related puns.
  • Troll:
    • Upon meeting Kris in an interaction at the end of Chapter 1, he'll tell Kris that he's already "befriended" their mother Toriel the previous night... that is, he had a chat with her when she came to the store to buy chocolate kisses.
    • At the end of their conversation, he gives Kris what's assumed to be his cell phone number, but if the player calls it, the number instead goes to the "Hotline For Idiot Babies".
    • In Chapter 2, the player can go into Sans' grocery. If the player asks about buying something from him, he says that they need to get a basket from the stack in the corner to shop like anyone else... except the stack is so high there's physically no way for Kris to reach up and get one, preventing them from shopping. The narration calls this the "Throne of Evil's".
    • He owns the store, but he's just the janitor, really. There's no cashier to man the register, he's just filling in. Despite owning the store, he can't hire a cashier—after all, he's working on a janitor's salary, how could he possibly afford that?



The local police chief.

  • Abled in the Adaptation: This iteration of Undyne has both eyes instead of missing her left eye.
  • Adaptation Relationship Overhaul: This version of Undyne doesn't know who Alphys is, much less have any sort of attraction to her. Her interactions in Chapter 2 suggest that it's getting there though.
  • Bad Cop/Incompetent Cop: The Bad Cop to Napstablook's Incompetent Cop; they appear to be the only two police officers in town. Napstablook hides away in the police station rather than deal with anyone who might actually need the police for anything, while Undyne reacts to even minor offenses with significant overkill, when she isn’t causing problems herself.
  • Contralto of Danger: Just as before, her Voice Grunting is quite deep, second only to Susie.
  • Demoted to Extra: Goes from a significant boss fight in Undertale to a random NPC so minor that if you had never played the original game, you would dismiss her as a complete nobody.
  • Foreshadowing: It's something of a Freeze-Frame Bonus in the intro that goes by too fast for most players to notice, but the fact that she's got two intact eyes is a huge initial tip-off that this isn't the Undertale cast you may have come to know.
  • The Guards Must Be Crazy: In Chapter 2, she accidentally lets loose prisoners inside her precinct's jail, by accidentally sending the key flying right into the cell door's keyhole. Apparently this is not the first time she let prisoners loose like this.
  • Hot-Blooded: She wouldn't be Undyne otherwise. Even her police tape reads "NGAAAAAAH!"
  • Police Are Useless: Though she argues that it's because nothing exciting ever happens in the town for her to address.
    • Instead of directing traffic flow, she'll let cars go on the wrong side of the street and will stand in the middle of traffic yelling at cars to get out of her way. In Chapter 2, we see that her other idea of directing traffic is bench-pressing cars in the middle of the road.
    • If Kris tries to tell her about the Dark World in the school, she will be confused, assume you have a vivid imagination, and say that since there are no laws against any "Dark World" anyway, it's the school board's problem, not the police's.
    • Kris again tries to warn her about the Dark World in Chapter 2. She laughs so violently at this "joke" that she shatters her desk, and sends a key flying which lands perfectly in the lock of a nearby holding cell, allowing every single criminal locked inside to run free into the streets.
  • You Are in Command Now: It is all but outright said that the main reason she got the job as the local Chief of Police, despite being a ill-tempered rookie, was because Asgore was removed from the post due to some unspecified incident and the only other candidate for filling in the job was Napstablook (whether Napstablook was even asked before Undyne was offered the job is ambiguous, but they likely wouldn't have accepted it either way).


"Wanna chat for a minute before I lose my mind?"

A long-suffering employee at ICE-E's P"E"ZZA. Has a dour outlook on life.

  • Adaptational Name Change: He was Burgerpants back in Undertale. Justified since he's Only Known By His Nickname in both cases, and it's a nickname based on his profession.
  • Bad Job, Worse Uniform: His job requires him to stand outside all day in a ridiculous mascot costume... for no discernible reason, because ICE-E's P"E"ZZA isn't even open since all the employees are standing outside wearing ridiculous mascot costumes.
  • Burger Fool: Same as his Undertale counterpart Burgerpants, though this iteration of him works at a "pezza" place instead of a burger joint.
  • Butt-Monkey: Even in an Alternate Universe(?), he can't catch a break.
  • Casanova Wannabe: Cannot even reach this point. He immediately tells you the tale he had about picking up chicks with Asriel is completely false, and that the only female contact he had then was Undyne giving him a ticket.
  • Cool Kid-and-Loser Friendship: He was close friends with Asriel, despite their vast difference in social standing.
  • Cool Big Bro: Downplayed, but some of his dialogue vaguely implies he had moments where he tried to be one toward Kris, if only try to fill the void in Kris's life left by Asriel's absence.
  • Fan of the Underdog: Downplayed; while most people of Hometown view Kris as a Creepy Child, they mostly remain polite to Kris and don't hold their previous hijinks against them. Pizzapants, in contrast, has no problems with Kris whatsoever and it's clear he genuinely likes Kris.
  • For Want of a Nail: It's implied that Kris participated in a similar burger-running operation in his stead, albeit successfully.
  • Girlfriend in Canada: In the second chapter, he's apparently gotten a girlfriend... except he has no idea what she even looks like because they've only been communicating through texts. She allegedly sent him a photo of herself in a pizza bikini but it's so zoomed in and pixelated it just looks like a vague pizza-like blob.
  • Gonk: He continues to make really absurd faces, some of them debatably worse than in Undertale.
  • Goofy Suit: One of his many hated duties at the pizzeria is to stand outside in one of these.
  • Happiness Is Mandatory: He's as much a victim of this under Ice-E as he was under Mettaton. Probably even worse than under Mettaton. At least Mettaton didn't require him to wear a costume to work.
  • Hidden Depths:
    • This version of him is good friends with Asriel, even calling him by an affectionate nickname. And he apparently knows Kris fairly well too, to the point of being one of the few in town that doesn't imply they're weird and calling them "little buddy". He's actually pretty happy to see them rather than an actual customer.
    • Burgerpants in Undertale had completely given up on making anything of himself other than a burger-jockey in a dead-end job. Pizzapants seems to still hold on to some hope of making something of his life, as he mentions saving up to get himself into college.
  • In Spite of a Nail: He's still stuck working in fast food service (though for a pizza place this time), and still hating it about as much.
  • Large Ham: Still making goofy expressions while shouting about how he hates his job.
  • Only Known by Their Nickname: Much like his Undertale counterpart, Burgerpants, he was given a nickname by Bratty and his real name remains unknown.
  • Only Sane Man: Every one of Ice-E's employees, including Ice-E himself, is some degree of loony, except for Pizzapants. And he's more than content to just let the rest of them be because he's burnt out and doesn't care. That said, he does angrily object to one of Ice-E's policies instead of treating it with apathy like all the other ones.
    Pizzapants: I can't slack off for SECONDS without hearing... "Be a team player, there's no I in PEZZA!" YES THERE IS. YOU JUST TOOK IT OUT.
  • The Resenter: He's quietly jealous that Asriel managed to get out of town and make something of himself at university, and resolves to do the same when, or even if, he can. He doesn't hate Asriel, but he's not too happy with the situation.
  • You Make Me Sic: One of the little things that upset him about his work is the E in "PEZZA", which he eagerly mocks. Worse, the owner even tells him off for slacking with "there's no I in PEZZA", which he remembers with seething hate.

Minor Citizens

    Sans' Brother 

Sans' Brother

(No response... but the distant trousle of bones.)

Sans's little brother who just moved into town alongside him. In Undertale, he's known as Papyrus.

  • Big Little Brother: Papyrus was twice his brother's height in Undertale, but Sans only tells us of a little brother in this game.
  • The Ghost: You don't get to directly encounter him in Chapter 1 or 2. Aside from Sans mentioning him, the closest you get to interacting with him is going up to his house's front door, where you can hear "the distant trousle of bones," a nod to Papyrus' theme, "Bonetrousle".
  • I Just Want to Have Friends: Sans certainly thinks he needs one, and asks you to help with that.
  • Shrinking Violet: Depicted here as in desperate need of friends and so shy that knocking on the door in Chapter 2 causes him to run away from the door, contrasting his exuberantly extroverted Undertale counterpart


(Seems like the police aren't really feeling it right now...)

A ghost who mans the local police station. For whatever reason, they accidentally ended up becoming part of the police force, and they can't quit because their cousins are relying on them.

  • all lowercase letters: Like their Undertale counterpart, Napstablook writes entirely like this.
  • Bad Cop/Incompetent Cop: The Incompetent Cop to Undyne's Bad Cop; they appear to be the only two police officers in town. Napstablook hides away in the police station rather than deal with anyone who might actually need the police for anything, while Undyne reacts to even minor offenses with significant overkill.
  • The Ghost: No pun intended. In Chapter 1, they're not seen in person, but their actions (closing the blinds without a word and just hoping Kris goes away) and the flavor text of "aren't really feeling it right now" strongly hint that it is indeed Napstablook. You can eventually see them in person by entering the police station in the epilogue of Chapter 2.
  • Hidden Depths: In addition to carrying over their Undertale counterpart's penchant for music, they're also a brilliant writer, with their diary (identifiable as theirs by the writing style) becoming critically acclaimed after they mistakenly donate it to the Librarby.
  • Police Are Useless: While Undyne is out on the beat overreacting to minor incidents, back at HQ Napstablook underreacts, closing the blinds to the station when it looks like someone wants in. When Undyne accidentally causes a jailbreak in Chapter 2, Napstablook responds by putting on some music and chilling out, claiming the song doubles as a "jailbreak alarm". It's noted that they, a floating ghost, once somehow got stuck in a tree coming to rescue Catti's family from out of it.
  • Shrinking Violet: Just like in Undertale, they're demure to the point of invisibility.



My apologies, beautiful. I'm afraid I'm a bit of a nobody.

A ghost who lives with Napstablook, but never leaves their house. In Undertale, they're known as Mettaton.

  • Adaptational Angst Upgrade: Papyrus states in Undertale that Mettaton is a happy personality who practices performances, but this version of the character has openly given up.
  • Adaptational Wimp: Goes from basically taking over Hotland to not even having their own house.
  • Beautiful Singing Voice: Implied. One of the NPCs outside their house comments on how they sometimes hear wonderful singing coming from inside.
  • For Want of a Nail: As Alphys is just a high school teacher in this incarnation instead of an accomplished engineer, she lacks the skills that would have built their confidence-boosting robot body. Thus, they remain the morose homebody they were alluded to be in Undertale.
  • Hikikomori: Doesn't leave the house out of insecurity, and assumes all callers are for their cousin. Talking to them in Chapter 2 indicates they spend most of the time on the internet, and are implied to do little else otherwise.
  • No Name Given: They only describe themself as "a nobody".
  • Unwitting Instigator of Doom: It's implied that "nobody" drew up a design for their dream body, which ended up forgotten in the computer lab and appeared in the Dark World. This body is all but said to be Mettaton NEO, and it's the object of Spamton's desires. On the normal route, Spamton will try to murder Kris for their SOUL after getting NEO, while on the Weird route, he'll actively encourage Noelle’s rampage and unlock her strongest attack, exploiting the chaos to conquer Queen's mansion and take NEO for himself. Either way, "nobody" can cause a whole slew of problems without ever knowing about it.
  • Verbal Tic: Recognized by their use of the word "darling", like Mettaton did in Undertale.

    Angry Housemate 

Angry Housemate

What. What? WHAT?! If you're looking for Blooky, they aren't here!!
Another ghost who lives with Napstablook and "nobody". In Undertale, they're known as the Mad Dummy.
  • Adaptational Wimp: Goes from serving as Undyne's personal training dummy and a significant threat in combat to just being another ghost living with "nobody" and Napstablook.
  • For Want of a Nail: As Undyne is just a police officer in this incarnation instead of the Captain of the Royal Guard, she lacks any reason to have a training dummy to riddle with spears. Thus, they remain without a body to call their own.
  • Immediate Self-Contradiction: If you try and talk to them, they'll angrily state they don't recognize such a pathetic face, right before asking Kris to say hi to their dad for them.
  • Jerk with a Heart of Gold: While they're just as belligerent as ever towards Kris, They seem to harbor a soft spot for Asgore and even tells Kris to say hi for them.
  • Verbal Tic: Recognized by their tendency to repeat themselves three times, each getting progressively louder, like the Mad Dummy did in Undertale.



Lil Krissy!!! Like, what's up!?

A purple anthropomorphic cat and older sister to Catti.

  • Adaptation Relationship Overhaul: In Undertale, She and Bratty are the best of friends, whilst in this game, they see each other as enemies.
  • Cool Big Sis: She sees herself as one toward Catti, though she admits Catti thinks she's embarrassing.
  • Honorary Aunt: She fancies herself as being one toward Kris. She absolutely adores Kris and encourages them to talk to her about anything.
  • We Meet Again: How she views her "altercations" with Bratty. Each of them thinks the other is deliberately showing up to one-up and sabotage her life, instead of both just having common interests. Even having an impromptu ukulele jam-session on the beach together isn't enough to dispel this perception.



A green anthropomorphic alligator and Catty's next door neighbor.
  • Adaptation Relationship Overhaul: As mentioned in Catty's entry, they are fierce rivals as opposed to being best friends in Undertale.
  • We Meet Again: How she views her "altercations" with Catty. Each of them thinks the other is deliberately showing up to one-up and sabotage her life, instead of both just having common interests. Even having an impromptu ukulele jam-session on the beach together isn't enough to dispel this perception.

    Father Alvin Boom 

Father Alvin Boom

The local pastor. He's the son of the late Gerson Boom.
  • Drop the Hammer: Seems to own a hammer like his father did, as you can eavesdrop on him pondering on whether it is right for him to be using it for... something.

    Pizzapants' Coworkers 

Other Ice-E Employees

The other workers at Ice-E's P"E"ZZA alongside Pizzapants. They're a bit weird, and consist of Blue Ears, The Warrior, and the Purple Guy.
  • Adaptation Relationship Overhaul: In Undertale, the Nice Cream Guy was on slightly better terms with Burgerpants, despite his dislike for his total misunderstanding of jokes. Here, Blue Ears is implied to be Deltarune's iteration of Nice Cream Guy, and Pizzapants downright hates him for invading his personal space and intentionally spilling slushies on him and giggling.
  • Cloud Cuckoolander: All of them (besides Pizzapants) are a bit unhinged to say the least. The Warrior in particular keeps constantly shouting war chants at work, reducing the restaurant's success as a result.
  • No Indoor Voice: The Warrior alongside the Purple Guy scream everything that they say.
  • Through the Eyes of Madness: The Warrior seems to see the world itself as an epic fantasy game, as they refer to hospital staff as "white wizards" and the hospital room they're being treated in as a "healing chamber".


"It's me! You know ME, right?"

A lonely giant monster living at the bottom of the lake east of Hometown.

  • Accidental Misnaming: In Chapter 1, you can choose to introduce Kris with their name or "Hippopotamus". Onion will try to remember it, only to forget later in the conversation and call you "Krismas" or "Hyper Potato Mask" instead. In Chapter 2, they'll call you the opposite of what you introduce yourself as in the previous chapter (calling you "Hyper-Potato-Mouse" if you introduce yourself as Kris in the previous chapter, and vice versa).
  • Friendless Background: They don't have any friends at all, and when encountered, they'll ask Kris to be their Only Friend.
  • Name Amnesia: No one ever talks to them, to the point where they forgot their own name. They later ask Kris to give them a name (a choice between Onion, Beauty, or Asriel II), which they'll promptly butcher themself a few sentences in (becoming Umyum, Bootis, or Cereal).
  • Verbal Tic: They pepper every other sentence of theirs with "y'hear", y'hear?

    The Wet-Nose Bandits 

The Wet-Nose Bandits

Introduced in Chapter 2, they're a group of canine criminals locked up in the local precinct's jail after trying to break into a house in the town.

  • Adaptational Villainy: The dog sentries and guards from Undertale become criminals in this world.
  • Even Evil Has Loved Ones: Implied to have been the late Muttler, who has a grave in the graveyard and is also implied to have been one of the relatives from Undertale who became part of Endogeny.
  • Shout-Out: To the pair of bandits in Home Alone, the Wet Bandits. Not only are their names similar, but their backstory is flat-out the plot to Home Alone, having attempted to rob a house during the holidays only to be attacked by a menace in the shadows (the equivalent of Kevin McCallister) and arrested.

    Library Monster 

Library Monster
"I love reading books. Especially the ones upstairs. You should really read them!"
A monster that loves books.
  • Ambiguous Gender: There is nothing that indicates their gender.
  • No Name Given: They don't have a name.
  • NPC Roadblock: Talk to them and they'll say that they love the books upstairs. In Chapter 1, they're blocking the stairs, so you can't go upstairs. In Chapter 2, you can go upstairs but the monster still blocks off the left half of the room.
  • Palette Swap: Though this Non-Player Character is extremely unimportant, the fact that they're the colored version of the only Gaster follower who lacked one in Undertale causes them to stick out like a sore thumb.
  • Suspiciously Specific Denial: The game files refer to them as "normalnpc".
  • Welcome to Corneria: All they do is say that they like reading the books upstairs even when both of you are already upstairs, giving the impression there's more to the library than it seems once one considers the character's (lack of an) Undertale counterpart.

    Clam Guy 

Clam Guy
"Of course, it's not yesterday anymore, so too bad!"
A clam person who appears near the lake in Chapter 2 if Onion was not spoken to during Chapter 1.
  • Composite Character: While his standard appearance and name is the same as Clam Guy in Undertale, he takes other elements (such as initial appearance, changing appearance after being approached, and references to today/yesterday) from Clam Girl/Goner Clam Girl in Undertale.
  • Contrasting Replacement Character: Clam Guy tells Kris that they could have met Onionsan yesterday, whereas in Undertale Clam Girl told Frisk that it was impossible for them to meet Suzy today.
  • Extended Greetings: Feels the need to say "hey" to Kris and Susie five times.
  • Off-Model: He completely changes his colour scheme after being approached.
  • Jerkass: Scared Onionsan away by calling them "weird".

Other Characters


Gerson Boom

A lauded historian and author, as well as a former schoolteacher and the father of Alvin. Passed away sometime before the start of Deltarune.

  • 100% Adoration Rating: He's famous for his work as a historian and fantasy writer, recognized far and wide according to Father Alvin, and continued receiving condolences by letter long after his passing.
  • Composite Character: Being a researcher who was replaced by Alphys after his death draws parallels between Gerson and Dr. Gaster, who in Undertale was the royal scientist replaced by her after he got shattered.
  • Death by Adaptation: He was a living shopkeeper in Undertale. In Deltarune, he's been dead since a few years before the story began.
  • Posthumous Character: Alvin is seen visiting Gerson's grave in chapter 2, and can tell what kind of man he was if asked.
  • Renaissance Man: He was a blacksmith, a famous writer, a historian, and a schoolteacher.
  • Weapon Tombstone: In addition to a regular tombstone, his hammer was buried to mark his grave.


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