KFC Gang

Frisk's Appearance: Frisk is a yellow-skinned human child who wears a long-sleeve blue shirt with two purple stripes, blue pants (often depicted as shorts in the official Undertale merch), and brown shoes (usually depicted as black or in a darker tone). They have medium-length straight brown hair, short and choppy bangs, and a blank expression. Though Frisk does not show much expression in the overworld, NPCs often describe Frisk's expressions. Just like the first human, they have no stated gender and are solely referred to with "they/them" pronouns throughout the game, or by generic terms (such as "child", "human", or "kid".)

Frisk's Personality: Frisk's personality is usually ambiguous, allowing the player to project any personality onto Frisk since they're very often speechless to them. However, the narration that describes Frisk's actions occasionally changes depending on their LOVE. Frisk speaks to NPCs throughout the game, especially when ACTing in encounters, but the exact dialogue is shown only when the game gives multiple dialogue options. NPCs' dialogue boxes display "..." to show that the NPC is listening to Frisk, and some NPCs respond to questions that Frisk asks.

Depending on their actions, players can interpret Frisk as merciful and kind, or merciless and violent. Some NPCs emphasize Frisk's kindness, understanding, and grace in the epilogue. Frisk is obedient and only disallows player input when they follow someone else's instructions, such as when Sans tells them to hide behind the conveniently-shaped lamp.

Chara's Appearance: Chara looks strikingly similar to the protagonist, and has a "similar fashion choice," as said by Asriel Dreemurr. Both appear to have been around the same age when they fell into the Underground. Chara's SOUL is also the same color as the protagonist's, which is indicated by the red SOUL on Chara's coffin, but any other shared traits are unknown.

At the end of the Genocide Route, Chara appears with a long-sleeve neon green sweater with a single horizontal cream stripe (which is an inverted color of the protagonist's shirt, with a single stripe) and nondescript red-brown pants and shoes. Chara has peach skin, brown medium-length hair with side-swept bangs, and rosy cheeks. Distinctly, they have open brown eyes, and a smile that contrasts the protagonist's stoic expression. In the "Soulless Pacifist" ending, Chara appears with red eyes.

Chara's Personality: While initially cast in a sympathetic light, Asriel admits at the end of the True Pacifist Route that Chara "...wasn't really the greatest person." Asriel explains Chara climbed Mount Ebott for an unhappy reason, and that they "hated humanity." In the VHS Tapes, Chara is implied to be mischievous, and can make a "creepy face" with a certain smile. Chara is also intelligent, secretive, and persuasive. Chara does not let their plan be recorded on the camera, and they gain Asriel's trust to continue their plan. At one point, Asgore noticed Chara once had a sense of hope in their eyes.

There is evidence to suggest that some narration, as well as descriptions of certain actions and events, is by Chara themself. However, the narrator throughout the entirety of Undertale is up to speculation.

At the end of the Genocide Route, Chara behaves in a polite, formal, and terse manner. Chara's vocabulary is slightly above average, and they are blunt and criticizing in their dialogue.

After a second Genocide Route, Chara expresses confusion at the protagonist's "sentimentality," and states that they can no longer understand such emotions, implying that they, like Flowey, have lacked a SOUL, and thus emotions, since their death.

Kris's Appearance: Kris is a human teenager with an amber skin tone and messy, shoulder-length dark maroon hair. They wear a long-sleeve lime shirt with one horizontal yellow stripe, and nondescript pants and shoes. One of Kris's distinct traits is that their long bangs cast a shadow that hides the upper half of their face. In the brief moments they tear the SOUL out of their body, their red eyes can glow in the dark. One of their crimson eyes is also visible for a few frames when they descend into a Dark World.

To the player, Kris consistently has a blank, neutral expression. They seemingly stand straight during the majority of non-scripted actions. Kris's expressions and movement are different when they are about to remove or have removed the SOUL.

Kris's Personality: During the events of Deltarune, Kris is mentioned to be an introvert. Susie and King refer to Kris as a "quiet person," and Noelle is astonished if they converse about "anything." After Kris's brother, Asriel, left for college, they became distant from their few friends. Kris's side of their shared bedroom is also strikingly bare. The shared game console is underneath Asriel's bed, and their old children's books are in Toriel 's classroom instead. Toriel has also mentioned that Kris is not normally energetic. They have a history of not waking up on time, and often slept through the start of class. Kris also preferred their mother driving them to and from school than walking.

Contrary to Kris's apparent detachment, they do have a variety of interests. Kris has always been mischievous, pulling dark pranks such as covering themselves in ketchup and claiming it was blood. For example, Kris has the option to keep flushing the toilet before or after going to school, with Toriel replying: "You did not put a bath bomb in the toilet again, did you?"

Kris enjoys playing the piano. Prior to the game, they frequently played the hospital piano, despite it "missing most of the good keys." They have searched for tutorials to improve, and Red Big Mouth believes they can play the hospital piano "beautifully." In a private post from Noelle's blog, Noelle mentions that Kris would often come to her house and use her piano since Kris did not have one in their home. Noelle explains that whenever she followed them into the dining room to listen to them play, Kris would immediately stop playing. Without an interruption from Noelle, however, Kris would continue playing, sometimes for hours at a time.

When younger, Kris studied the occult with Catti. They appear to still have an interest in this topic, as one of their search queries was "how to use magic."

At the end of Chapter 1, Red Big Mouth and Toriel both comment on Kris's physical appearance. They cite that Kris seems "a little sick" and does "not look quite yourself" respectively. It is implied that the SOUL is the reason, though the exact cause is unknown. Notably, Kris wants to be perceived as "normal" despite Toriel's concern.

Kris is shown to have a significant amount of agency outside of the player's choices. This is most clearly shown in scenes where Kris rips the SOUL out of their body, but also in how characters react to Kris's dialogue choices: occasionally, the player may choose an option that other characters note sounds like Kris is straining to say. Kris is also shown performing actions independently of the player's control, including protecting Susie from King or awkwardly trying to escape the Sweet Cap'n Cakes fight with Ralsei and Susie, showing their friendship with the two exists outside of the player's influence. Additionally, there are some instances in Chapter 2 where Kris stops inspecting something relating to their home life, preventing the player from learning more: when inspecting Asriel's room in Queen's Mansion, Kris closes their eyes before peeking into Asriel's room in the Guest Hall; when inspecting an article about Asgore's firing and Undyne's promotion, Kris intentionally stops reading before the reason is given. The separation between the player and Kris is most clearly shown in the Snowgrave Route, where it is heavily implied Kris's actions are being done against their will. Noelle describes the voice she heard giving her orders as terrifying, noting Kris has been acting very strange lately. When Kris reunites with the party after defeating Berdly, Susie and Ralsei immediately notice Kris appears distraught.

Another instance of this happens in the normal route of Chapter 2, where after defeating Spamton NEO, Susie notices Kris appearing to be in shock. If the player responds to Susie that they're okay by saying Yes, Kris appears strained in their response, making Susie think that they're not okay; if the player responds to Susie by saying No, Kris yells out the response, concerning Susie and Ralsei. This heavily implies that Spamton's dialogues about being a puppet and cutting his strings to be free, combined with Spamton's ultimate fate, deeply unsettled Kris.

Sans's Appearance: Sans appears as a relatively short and paunchy skeleton, with mitten-like hands. Sans is always seen with a wide, toothy-grin on his face. Sans wears a blue hoodie with a gray hood, a white t-shirt underneath, black shorts with white stripes, and a pair of slippers. He has white dots for pupils in his black eye sockets that disappear when he is serious or angered. When Sans uses telekinesis, his left eye flashes light blue and yellow (the colors for patience and justice) while his right pupil vanishes.

Sans's Personality: Sans is lazy, often sleeping on the job and taking breaks. His laziness is a combination of fatalism and apathy, as he is aware of timeline resets. Conversely, he suggests that this knowledge could be "a poor excuse for being lazy."

He enjoys being mischievous. Sans primarily acts this way towards those he is in good terms with. His antics range from an assortment of illogical, juvenile, and slightly inconvenient pranks. Examples include Sans "selling fried snow," using whoopee cushions, sharing an unscrewed ketchup bottle, and eye paint on a telescope. He is not above utilizing his teleportation or other magic for practical jokes either. Sans is also fond of making the occasional low-brow puns. He enjoys making others laugh in general, as he also performs at the MTT Resort as a comedian.

Toriel's Apperance: Toriel shares a similar appearance as her Undertale counterpart, though she has a small tuft of fur on the top of her head, and does not wear her distinct Delta Rune tabard. Instead, she favors casual clothes, which consists of an iris long-sleeve jacket, a black blouse, and a polka-dot skirt. She also wears a heart pendant and color matching glasses, though the former is not visible on her overworld sprite, and the latter cannot be seen on her dialogue sprite.

Toriel's Personality: Toriel has a kind and motherly temperament, as she is a parent to Asriel and Kris; and is a teacher for the younger students at the local school. She is tidy and old-fashioned, as her house has a landline telephone, as well as a television with an external antenna; her interests include baking, teaching, reading, snails, and puns. Toriel is religious and keeps a book of hymns in her home.

Toriel is also prone to being judgmental. She appears to expect trouble from Kris since she recalls their past mischief, such as the time they put a bath bomb in the toilet, and emphasizes that Kris should not consume all the pie. Her judgmental nature extends to her severed relationship with Asgore. While she refrains from criticizing Asgore directly in front of Kris and allows them to freely visit him, she lets her disdainful feelings toward him show on her face, and rebuffs his attempts at reconciliation.