Klonoa is the main character From the platformer series of the same name. He's a heroic dream traveller who goes on adventures and in the series, he's a huge fan of Pac-Man. 

If you need any idea of what he sounds like, look at voice clips from games like Namco X Capcom, Klonoa 2 or even the original game.

(NOTICE - Do not use Klonoa's English voice from the Wii remake as a point of reference. It's heavily inaccurate to the original voice of Klonoa and plus I prefer the voice from the OG games. The same can also sort of be applied to the English version of Klonoa Beach Volleyball however the voice is a bit better there.)