[rapappa the pepper]

Just a fun little game really, who in whatever world do you think Klonoa would hate to be close to, talk to, anything in between, that isn't a villain like Joka, Ghadius, Leorina or even King of Sorrow?

[HaggisD1]

The first one that comes to my mind is Balue, he somewhat used Klonoa for his own goals and lied to him multiple times,  but his way of using Klonoa made Klonoa much stronger and he somewhat was helpful to Klonoa in Heroes.

He also very obssesed with Lephise, what could make Klonoa feel uncomfortable.
And he is much older than Klonoa...

[RAYDEN]

Whoever is responsible for scattering 150 Dream Stones on each of all Visions and holding a scrapbook as ransom for them. Surely Klonoa would grow frustrated as he realizes the task for retrieving them is easier said than done. The perpetrator better watch out, the Dream Traveller is coming! 

[Cobra!]

Maybe not hate, but I can imagine Klonoa would have seen Popka as annoying with his "man up" kind of attitude. Not to mention committing a crime from stealing that board!

[SerialDreams]

Oh, I didn't read the whole title. 

I don't think Klonoa would have it in him to hate anyone who isn't cold-blooded.
He strikes as the "Goku" type, who wants to see the good in everyone.

[Voka~Daemyn]

I'd wonder if immediately after the very first Klonoa game if he held at least some small grudge over Huepow. It probably didn't stay though. Klonoa strikes me as a character with an uncanny awareness of the world around him. Very empathetic as well.