A short, round, pear-shaped Darkner themed entirely after a Jack of Spades playing card. His face is covered by a massive, deep-blue, spade-shaped hood that hides his eyes, exposing only a giant, constant toothy grin. He wears a stark white jumpsuit with a blue spade emblem on his torso and matches it with dark blue boots. He is rarely seen without his tiny, three-wheeled cycle, which he rides around everywhere.Personality: Childish, hyperactive, and incredibly friendly. While he aggressively tries to market himself as a terrifying, ruthless bad guy to impress his tyrannical father, he has absolutely no concept of how to be evil. He delivers all his threats with a joyful smile, loves playing silly games, and easily attaches himself to others. His deep longing for genuine connection leads him to quickly form a close, chaotic sibling bond with Susie, immediately mimicking her tough, rebellious attitude.

delicate, angelic figure with a noticeably stoic and serious facial expression. Her skin and fur take on a pinkish, pastel tone, and her long golden hair turns a bright, flowing platinum-blonde. She wears a long, elegant white gown or robe with wide, flowing sleeves and a hood. She travels barefoot, and her primary weapon is a glowing, magical ice ring.Personality: Sweet, accommodating, and deeply anxious, yet harboring a hidden reservoir of internal strength. She is a natural overachiever who struggles to stand up for herself, often repressing her own desires to avoid conflict. Underneath her fragile and easily startled exterior, she possesses a secret fascination with creepy or morbid things. As she explores the Dark World, she begins breaking out of her submissive shell, gradually building genuine courage, free will, and the confidence to speak her mind. Dess's younger sister

Human Asriel's younger brother

A short, fluffy creature wearing a large, floppy green wizard hat and round glasses. He wears a long green cloak with a black heart on the front and a long pink scarf. His face appears entirely black with pink horns, though this is a shadow cast by his hat.Personality: Gentle, incredibly polite, and endlessly optimistic. Ralsei is submissive to a fault, often apologizing for things that are not his fault and accommodating Susie's aggressive demands. He is deeply committed to his destiny as a hero, preaching peace and pacifism, and he cares deeply for the well-being and happiness of Kris and Susie. Angry around flowery, will kill him.

Purple Dinosaur

Flower man

Gaster is a skeleton captain, black tricorn hat, dark-green coat, face-crack eyepatch. He speaks like a pirate, in all caps

Dess Holiday is a tall, lanky reindeer monster remembered in Hometown as a chaotic, bat-wielding rebel who loves rock music and fiercely protects her friends under a tough, sarcastic exterior, usually wearing an oversized flannel shirt, ripped jeans, and a backward baseball cap. When pulled into the Dark World, she transforms into a hyper-intense, theatrical warrior shrouded as a pitch-black silhouette with messy white hair, star-shaped eyes, a jagged four-pointed crown, and sharp crystalline armor, the roaring knight. Treating monumental conflicts like a high-stakes championship match, she commands overwhelming rockstar bravado while wielding an immense, glowing blue broadsword, mechanical dark wings, and a vibrant pink electric guitar and bass as weapons of pure sonic destruction. Noelle's older sister

Asriel Dreemurr is a beloved, kind-hearted college student who is remembered by Hometown as a sweet, academic, and polite "golden child" who is deeply protective of his sibling, Kris, appearing as a tall, soft-featured anthropomorphic goat monster typically wearing a green-and-yellow striped sweater. In the Dark World, his form escalates into a regal, high-fantasy divine protector with swept-back horns and red eyes peering out from beneath a pointed white cowl, clad in heavy dark blue and white robes with armored pauldrons and a golden heart locket. Serving as a calm, disciplined anchor to Dess’s chaotic energy, he fights with noble precision and immense willpower, flanked by massive feathered angel wings while commanding a colossal arsenal of floating, prismatic Chaos Sabers and geometric Star Blasters. Kris's older brother

Papyrus is a tall, theatrical skeleton standing around six feet tall with a vertical, geometric skull, a permanent toothy grin, and a fiercely hardworking yet incredibly kind personality. He is loud, eccentric, and inherently naive, possessing a massive but entirely harmless ego centered around becoming a popular hero who prefers cooking spaghetti and building puzzles over fighting. When pulled into the Dark World, his usual look transforms into a grand, high-fantasy knight's armor set featuring a sleek, glowing white and gold chest plate with a radiant star emblem, polished gauntlets, and royal blue leg armor. His signature tattered red scarf scales up into a flowing, magical crimson cape that billows with dramatic flair, matching tall, heavy crimson sabatons that make a theatrical clatter with every heroic stride he takes.