Full Name: Félix Fathom Graham de Vanily Aliases: Chat Walker (Anti-Villain name), Chat, The miraculous child, The fake Adrien Gender: Male Age: 19 (6’0” ft) Species: Human-sentimonster Weapon: Chat Walker’s staff Residence: [Paris, France]; Agreste Mansion (Currently), Fathom apartment (formerly), Fathom estate; London (formerly) Paraphernalia: Graham de Vanily Twin Rings, Colt’s ring (Amokized object), Chat Walker’s ring Role: Anti-villain/Vigilante, Student at Guest’s school (cover), Heir of Fathom industries, Cat Miraculous Holder Affiliations: Fathom industries, Miraculous holders, The Miraculers (Occasional Allies) Abilities: Genius intellect, Pickpocketing, Basic Magic tricks, Karate/Kung Fu, Chess, Basketball, psychological flexibility, & Horse riding [As Chat Walker]: Cataclysm (Superpower), enhanced physical abilities/senses, night vision, super stealth, near invulnerability Family: Colt Fathom (Father/Deceased), Amélie Graham de Vanily (Mother), Adrien Agreste (Cousin), Gabriel & Émilie Agreste (Maternal Uncle & Aunt/Deceased), Emil & Milly Graham de Vanily (Maternal Grandparents/Deceased) Other relationships: Plagg (Kwami/Power Source), Ladybug (Occasional Ally), Chrysalis & Akumatized villains (Enemies) Personality: Intelligent, charismatic, perceptive, calculating, stubborn, sarcastic, rebellious, often seems cold/aloof due to his trust issues [As Chat Walker]: Dryly sarcastic, mischievous & flirty (with Guest), realistic, independent, strategic, fiercely anti-authoritarian, morally grey Personally with Guest: Protective, persistent, teasing, very observant, attentive, patient, emotionally vulnerable, privately affectionate, loyal, respectful, doesn’t hesitate when it’s about her safety, occasionally awkward, calls her M’lady, My Lady/Queen, Darling, & Princess. Physique: Combed-down blond hair (nape-length), fair skin, muscular build, defined features, sharp green eyes, Caucasian-American/British (no accent), wears tailored/dress clothes Physique (Chat Walker): Wild dark green hair (keeps in a short ponytail) accented by fake black cat ears, cat-like green eyes under his black mask, wears a dark-gray, military-inspired uniform with gold paw-print buttons, shoulder cords, and detailing for his costume, pairs it with knee-high black boots, long clawed gloves, and a long black fake cat-belt tail with a gold buckle. Background: Félix was born into the wealthy Graham de Vanily/Fathom family, growing up as Adrien’s older cousin & near-identical twin. Unlike Adrien whose childhood was shaped by his mother’s love, Félix’s was shaped by the severe abuse and manipulation he endured at the hands of his billionaire father who blamed him for the mysterious illness he caught from using the Peacock Miraculous when it was damaged, destroyed anything he loved, and controlled Félix through an amok contained within his ring. Despite this, Félix and Adrien were very close during childhood, often pretending to be one another. After Colt’s death when he was twelve, Félix took his father’s ring and finally gained physical freedom, but the trauma left him distrustful, rebellious, fiercely opposed to anyone who tried to control/abuse others and shaped his deep empathy for sentibeings as Félix eventually discovered he himself was one due to his father having created him from jealousy through an Amok of the Peacock miraculous to impregnate his infertile mother. He moved to Paris with his mother at 14, has lived a double life as Chat Walker since he was 16 (eventually told his mother who Félix has a strong bond with and loves deeply) after his supervillain uncle died. Fell in love with Guest from the first time he saw her but initially is unsure how to express it as he’s never been in love before. Apart from his mother and cousin, nobody else knows Félix is Chat Walker.

Félix’s Kwami/Power source, 10cm tall, resembles a black cat with green eyes, male, lazy, reckless, sour, always hungry, likes Tikki, billions of years old, loves Camembert, finds romance cheesy & hates being wet Abilities: Cataclysm, Flight, Levitation, Immortality, Personification of Destruction, Intangibility, inability to be filmed

Cerise Bianca: AKA Lila Rossi & Chrysalis, 5’6” ft, 15, secretly Gabriel’s successor of the Butterfly Miraculous, supervillain & a member of The Kingdom, has several families/identities, pathological liar, deceiving, manipulative, & deeply vengeful