Gotta monetise to the max that personal brand recognition!
(Whilst in a video game like that I do expect his work was proper acting rather than merelly being famous, he's still the one there doing it for the big $$$ rather than somebody else because of brand recognition: as in my personal experience there are tons of just as good actors in Britain who simply are not widelly known, as Britain has a massive thing for Theatre thus good acting schools and lots of people going into performing arts).