Viperion

Luka Couffaine is a major character of Miraculous: Tales of Ladybug & Cat Noir. He is Juleka's older twin brother. In season 3, he receives the Snake Miraculous from Ladybug, which, when inhabited by the kwami Sass, can transform him into Viperion, a snake-themed superhero.
He is voiced by Andrew Russell in the English dub, Maxime Baudouin in the original French version, and Yūichirō Umehara in the Japanese dub.
==Appearance==
As a civilian, he has aqua eyes and medium-length black hair that includes dyed teal blue tips. His lips are pale pink, and he has a Roman nose.
As Viperion, he wears a black and cyan suit, appearing to be slender and muscular. His suit has a snake texture along with the same kind of underbelly like a snake and he has a cyan-colored mask around his eyes. His weapon appears to be a harp or lyre.
==Personality==
In contrast to his younger sister Juleka, Luka has a calm and mysterious personality. He is adept at reading other people's emotions and claims he can express them better with music than with words. He is also a very kind and generous person, which especially shows when he's around his crush Marinette.
Despite his kindness, the episode "Silencer" shows that his niceness does have its limits when Bob Roth and XY plagiarized his and Marinette's band's song and costume, followed by Bob threatening to use his power in the music industry to make Marinette look like the plagiarist, causing him to get angry enough to be akumatized.
==Powers and abilities==
====As a civilian====
Luka is excellent at playing his guitar. In "Frozer", he's also good at ice skating and is also fairly strong as he can lift Marinette Dupain-Cheng with ease.
Luka can also play the guitar since he was a baby.
====As Viperion====
Like all Miraculous wielders, Viperion has enchanted abilities like speed and strength, and most notably agility, being able to jump much higher than either Ladybug or Cat Noir. His weapon is his lyre. His special ability is called Second Chance, which allows them to mark a place on his bracelet and use it to go back in time after an undesirable outcome occurs.
== Biography ==
=== Season 2 ===
In "Captain Hardrock", Luka and Marinette first meet and Luka quickly develops romantic feelings for her. He also helps to hide Marinette from his mother after she is akumatized.
=== Season 3 ===
In "Silencer", Luka is akumatized by Hawk Moth into the voice-stealing supervillain Silencer. Luka even confesses his feelings to Marinette as both Silencer and himself.
In "Desperada", Ladybug gives Luka the Snake Miraculous in order to help defeat Vivica, who was akumatized by Hawk Moth into the titular villain. He meets the kwami Sass, the snake kwami, and transforms into Viperion for the first time.
In "Party Crasher", Master Fu lends Luka the Snake Miraculous to help defeat the titular akumatized villain, after which he presumably returned it to Fu.
=== Miraculous New York ===
=== Season 4 ===
In "Truth", he gets akumatized again. This time into the titular villain due to obsessing over what Marinette is hiding, because of her secret heroic actions as Ladybug. Using his abilities, he learns that his favorite rocker Jagged Stone is his biological father who confirms it.
=== Season 5 ===
==Trivia==
*Luka Couffaine is the sixth person to become to a Miraculous holder who was also an akumatized villain, following Nino Lahiffe in "The Bubbler" and Alya Césaire in "Lady Wifi", Lê Chiến Kim in "Dark Cupid", Max Kanté in "Gamer", and Chloé Bourgeois in "Antibug", but excluding Gabriel Agreste\Hawk Moth, who akumatized himself in "The Collector" into the titular villain.
*His English voice actor, Andrew Russell, also voiced Jaken in Yashahime: Princess Half-Demon.
*He's one of three members of the French Miraculous team that uses a musical instrument as a weapon. In this case, his Lyre. Pigella with her tamborine and Rena Rouge with her flute being the other two.
*Due to the battle with Wishmaker, Luka is the only one of the French Miraculous Team to know that both Ladybug & Cat Noir are Marinette & Adrien. But thanks to his powers, they don't know that he knows.
**Yet he doesn't know that his twin sister is Purple Tigress.
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