It's the same voice actor, you're just hearing new lines.
Nolan North faking an Old English accent is terrible. I know a lot of people love/d North but if he just kept the same tone as he did for Uncharted, I would have felt better. It's nausiating right now and I just tune that stuff out, it's one of the reasons why I would have preferred if all voice actors did lines for all classes and we could choose. I'd have at least picked the Inquisitor, Warrior, or Knight (Solid Snake) voice actors instead.
It's sad when someone like Jonathan Mallen pops up (who voices Vergil
in Ninja Theory's DmC) him playing as a Consular would have been ****** for a male role.