Jim Carrey, he can do the absurdist comedy as well as tragedy...
I once saw the oddball movie The Bad Batch, and there was this homeless guy character who I thought is so relatable, as in I'll provably end up like him. I didn't recognise him at the time under the makeup, but that was Jim Carrey.
Nobody because it would have to be animated and contain only trained, professional voice actors. I ain't accepting no actor to play the part of me, ever.
Otherwise, I might just want some up and coming voice actor to get the role just to get their foot in the door.