Cy-Kill

Cy-Kill is leader of the Renegades. He is successful as he is the brother of Megatron, like killing and murdering Uncle Ben Parker, Thomas and Martha Wayne, destroying Krypton, killing Abin Sur, and so on. In the House of Animals franchise, he killed Thomas and Martha Wayne, Abin Sur, and Uncle Ben Parker with the help of Joe Chill. They returned as ghosts when Cy-Kill witnessed the Hood encountering Harry Potter and their spells connected.