Play magazine UK talked to PoP designer Thomas Delbuguet at E3, who confirmed that the new prince is voiced by Nolan North:
"Yep Nolan North is the voice actor of the prince," said PoP's game designer Thomas Delbuguet. "And we love him, he's got a great humour. We see this prince as being a bit of a joker and he can be a bit of a sarcastic guy. He's an adventurer, he's out for goodies and he has his own motivatations."