She is a sweet teenage student in Paris who wants to design clothes. With magical earrings and a kwami named Tikki, she turns into the hero Ladybug

He is a French teen student, fashion model, and superhero who uses the Cat Miraculous and his kwami Plagg to transform into Cat Noir, fighting alongside Ladybug to protect Paris. He has two separate lives, one as a superhero and one as a student.

She is Marinette Dupain-Cheng’s loyal best friend, an aspiring journalist, and the creator of the famous "Ladyblog". She also transforms into the fox-themed superhero, Rena Rouge.

He is a student at Collège Françoise Dupont, Adrien Agreste’s best friend, and an aspiring DJ. Using the Turtle Miraculous and the kwami Wayzz, he transforms into the superhero Carapace.

He is a calm, musical teenager, the twin brother of Juleka Couffaine, and the son of the musician Jagged Stone. He also acts as a occasional superhero and a past romantic interest for Marinette. He's a very calm, kind, mature, and good at reading other people's feelings through their musical expressions. He also Wields the Snake Miraculous (inhabited by the Kwami Sass) to become the snake-themed superhero Viperion, using his power of second-chance time loops to help Ladybug and Cat Noir.

She is a skilled Japanese fencer, a rival and later friend to Marinette Dupain-Cheng, and the holder of the Dragon Miraculous, which transforms her into the superhero Ryuko. Kagami strives for perfection in everything she does. She uses the Dragon Miraculous with her kwami, Longg.Her superhero name is Ryuko.She can transform into water, wind, and lightning elements.

He is Adrien Agreste's identical cousin, a skilled manipulator, and the superhero-turned-antagonist-turned-ally known as Argos. Using the Peacock Miraculous, he fights as Argos and possesses a powerful, dangerous sentimonster-destroying ability.

She is a manipulative student infamous for fabricating elaborate lies and serving as a major rival to Marinette Dupain-Cheng. Using her true identity and her new villain alias known as Chrysalis steps up as the primary main antagonist. Armed with the Butterfly Miraculous, she operates with a much darker, more calculating strategy than Gabriel Agreste, hiding in the shadows, managing multiple aliases, and working to expose Ladybug's secret identity.

She is a teenage transfer student from New York City, the kinder half-sister of Chloé Bourgeois, and the superhero Vesperia, who wields the Bee Miraculous. Unlike her abrasive and snobbish half-sister Chloé, Zoe is deeply empathetic, kind, and emotionally grounded, though she initially tried to act tough and mean to fit in with her biological family.