If they ever make a GTA movie

Or the guy that does Trevor could because he is on the walking dead right now and basically same character

I don't think he can carry a movie though.

Trevor is Canadian, as Steven Ogg is, so I doubt Walton would be as good as Steven. But I read somewhere that Trevor was initially supposed to be a southern redneck, R* only changed that b/c Steven's background. That makes me immediately think of Walton.