Mark Hamill has had a diverse acting career, from the incredibly popular Luke Skywalker of the Star Wars saga to voicing iconic villains like the Joker in Batman: The Animated Series, and Firelord Ozai in Avatar: The Last Airbender. Although he’s famously said he won’t voice the Joker again following Kevin Conroy’s recent passing, it looks like Hamill will be returning to another beloved animated series to voice one of his iconic characters.