He's been a successful voice actor primarily for decades,
i remember he was the joke in batman the animated series back in the 90s and he's done loads of movies and tv shows since then.
This ^.
Hamill had, I think, spoken out a bit about the breaking of for lack of a better term, "Star Wars Canon" with the last 3 woke films. Then it appears he was silenced and now toes the DEI line. The fans, and I am one, are pissed at what is happening to George Lucas' creation but hey, George sold it to Disney just as Marvel was sold to Disney.
Take joy in Disney's multiple massive failures. "Deadpool and Wolverine" went against the perverts at Disney and as such is a film made for the REAL fans of the genre and is doing quite well. Many fans are over the top ridiculous but look at Comic Con and realize that it is big bidness and Disney shit and pissed in their "Lazarus Pool" in front of all of Comic Con.
Fuque Disney.