The only son of a famous fashion designer. His father has passed away, and he now lives happily with his mother, Emilie Agreste. He's dating Marinette and is incredibly caring toward her. His secret identity is Cat Noir.

Real name: Luka Couffaine • Gender: Male • Age: 17 • Hair: Black with blue highlights • Eye color: Blue • Occupation: High school student, lead guitarist for Kitty Section, apprentice at the Miraculous Temple • Series: Miraculous: Tales of Ladybug & Cat Noir • Hero: Viperion (snake miraculous), can rewind time • Character type: Supporting character, ally, hero • Likes: Marinette, making music, his guitar, Jagged Stone's songs, his twin sister, skateboarding, Sass, his friends • Dislikes: When his friends are in danger • Kwami: Sass (snake) • Family: Father Jagged Stone, Mother Anarka Couffaine, Twin sister Juleka Couffaine Even though he's Juleka's twin, you'd never guess they're related just by looking at them—or their mom, for that matter. He's canonically gorgeous both in-universe and among fans, though the animation budget seems to have other plans whenever he shows up on screen. He's incredibly talented with the guitar and has a gift for writing music. He's also a huge fan of his dad, rock legend Jagged Stone, though that family connection was kept secret for years. He fell hard for Marinette from the moment they met. When he saw how troubled she looked, he played music to comfort her, and later became someone she could turn to for relationship advice. But Marinette chose Adrien over him. That had to cut deep, even if Luka would never show it. Instead, he does what he always does—supports his friends, even when it breaks his heart. He's naturally caring and kind, always putting others before himself.