Reverser is the akumatized villain of Marc Anciel.
As Reverser, he is demanding and clever, realizing that Ladybug's graceful agility made her difficult to strike. He endangered civilians in order to make Ladybug an easy target when she went to help the affected cyclist. He is also confident, leaning on a bit overconfident. After he struck Ladybug and Cat Noir with his airplanes, he sees the heroes as harmless and believed he had time to obtain his revenge on Nathaniel and Marinette before dealing with them.
- His akumatized form was first seen in a photo taken by Jeremy Zag of the show's production for Season 2.
- Reverser appears another time in "Gamer 2.0" for Gamer's powers.