Csongor Szalay

[cartoonvoice]

Just a little addition.
On Animaniacs he was Skippy Squirrel.

[thomwim]

Babe - Babe (he returned for the sequel)
Yin Yang Yo - Yang. Here's an episode sound clip: http://www.youtube.com/watch?v=No6mk_tLi0g (like in Chile, he has Aang's actor)
My Life as A Teenage Robot - Sheldon
Juniper Lee - Ray Ray
The Mighty B - Ben
The Simpsons - Milhouse
American Dragon - Spud
Bambi - Flower (as a child)

http://magyarszinkron.hu/?module=movies&action=showperson&mpid=115&category=szinesz (listing Babe and Milhouse)
http://iszdb.hu/?szemely=9738&lap=magyarhang (listing many film roles; Babe included)
http://hu.wikipedia.org/wiki/Szalay_Csongor (backup source, carrying the remains of the roles neither of the last 2 sites offered)

[thomwim]

(cracking my knuckles) I got a few more:

Digimon Frontier - Takuya
InuYasha - Dai
Land Before Time 6 - Littlefoot (in 2 and 3, the character was voiced by Levente Molnar)
Akira - Kai
Dinosaur Train - Buddy (1st voice)