Trixx is one of the tetartagonists of Miraculous: Tales of Ladybug and Cat Noir, and the kwami that is connected to the Fox Miraculous. Throughout the show's second season, he occasionally helps Alya Césaire transform into the superhero Rena Rouge to assist Ladybug and Cat Noir during certain missions.
He is voiced by William Coryn in the French Version and Cherami Leigh in the English Version.
Trixx is a small fox-like creature with purple eyes, eyelashes on the side of either eye, two dark brown spots on her forehead that look like eyebrows, and fox ears that are white on the inside and have black tips and edges. He is predominantly orange, but the area around his mouth, the tip of her tail, and his chest are white, while his arms and feet are black.
Trixx is shown as being friendly, wise, encouraging and a good judge of character, being able to identity the most positive qualities of his new wielder, Alya. He makes no effort to hide it if she is impressed by something, as shown by her reaction when Alya figured out that his purpose is to help her transform. He is also a good advice-giver, like when he convinced Alya to give the Fox Miraculous back to Ladybug like she promised by reminding her that she is a honest person.
Like all kwamis, Trixx can fly, levitate, phase through solid objects, and carry things that are bigger than him.
Trixx can transform the holder of his Miraculous into a fox-themed superhero by going inside their Miraculous Although unable to communicate to the wearer while they are transformed but can communicate to their transformed holders through their weapon-phones, Pollen usually knows what is going on during that time and allows them to use Mirage, a superpower which allows them to create an illusion. However, after has been used once, Trixx will lose his energy and leave the the Miraculous after five minutes, at which point the holder will revert back to their normal self. To transform again, the holder must recharge Trixx by feeding him.
Thousands of years prior to the series, Trixx and the other Kwamis traveled the universe, unable to interact with any creatures, particularly humans. This was until a mage forged the Miraculouses, so Trixx and the others could both interact with mankind and grant them the ability to transform into heroes; Trixx and the Fox Miraculous able to give a person the ability to grant other people superpowers.
Trixx first appears in the episode "Sapotis" when Ladybug temporarily gives the Fox Miraculous to Alya. Trixx is impressed when Alya realizes that his purpose is to help her transform into a superhero, and Alya uses him to transform into Rena Rouge. After helping Ladybug and Cat Noir return her akumatized little sisters to normal, Trixx, seeing that Alya is hesitant to return his Miraculous to Ladybug like she promised, agrees that they would be a great team, reminds her of her positive qualities, particularly her honesty, and this convinces her to honor her promise and give Trixx's Miraculous back to Ladybug, who then takes it back to Master Fu.
- His English Voice Actress, Cherami Leigh, who also voiced Asuna Yuuki in Sword Art Online series, Biyomon, Yokomon and Maki Himekawa in Digimon Adventure tri., Sarada Uchiha, Kurotsuchi and Anko Mitarashi in Boruto, Patricia Thompson in Soul Eater, Natsumi Hinata in Sgt Frog, Lucy Heartfilia and Lucy Ashley in Fairy Tail, Elizabeth Midford in Black Butler, Himawari Kunogi in xxxHolic, Komaru Naegi in Danganronpa, Sailor Venus in Sailor Moon, Miyo Sasaki in A Whisker Away, Caeda in Fire Emblem: Heroes, Makoto Niijima in Persona 5, Biyomon and Homeostasis in Digimon Adventure, Shana in Shakugan no Shana, Eucliwood Hellscythe in Is This A Zombie?, Ulala in Space Channel 5: Kinda Funky News Flash!, Ilia Amitola in RWBY, Yoshika Miyafuji in Strike Witches, Michiru Kagemori in BNA: Brand New Animal, Crystal in Pokémon Adventures, Ayano Kannagi in Kaze no Stigma, Chloe in Pokemon Journeys: The Series, Kazari Uiharu in A Certain Scientific Railgun, Kudelia Aina Bernstein in Mobile Suit Gundam: Iron-Blooded Orphans, Mutsuki in Kantai Collection, Suzuha Amane in Steins;Gate, Mika Shimotsuki in Psycho-Pass, AE3803 in Cells at Work!, Syrma in Mugen Souls Z, Chiffon Aoi in Freezing, Tamaki Kawazoe in Bamboo Blade, Seiros in Fire Emblem: Three Houses, Scanty in Panty and Stocking with Garterbelt, Minerva in The Walking Dead, Sunako Kirishiki in Shiki, Lady Echo in Wakfu, Eosmon in Digimon Adventure: Last Evolutation Kizuma, Water Lily Siren in Shantae, Road Kamelot in D.Gray Man, Amaterasu in Fire Force, Regina in Doki Doki! Pretty Cure, Catalina Canetti in Cyborg 009: Call of Justice, Mikiko Kawamoto in Devilman and Lacy in Sketchers.
- He is the kwami of illusion.
- Like Plagg, he wasn't able to control Mirage which it making Eiffel Tower move unnaturally and unpredictably.