Ivan Bruel

Ivan Bruel is a student in Miss Bustier's class at Collège Françoise Dupont. In "Ladybug & Cat Noir (Origins - Part 1)", after Kim teases him for not having the guts to ask Mylène out, he gets akumatized by Hawk Moth and becomes Stoneheart, a rock golem supervillain. Because Ladybug doesn't purify the akuma after defeating him the first time, he gets akumatized once again in "Stoneheart (Origins - Part 2)" when Mylène runs away from him because of his loud serenade.