He's such a gifted actor!! His acting is just totally believable! I liked (hated ;) his chracter in King2Hearts so much - but in A Tree with deep Roots he showed that he's able to pull of much more.
...--I didn't know that Garion was Jong Ki Joon until he showed himself... he seemed like an entirely different person o_O (Plus, only after i saw him as Ki Joon i realized that the actor was Yoon Je Moon - since i watched ATwdR after King2Hearts i knew him as evil villain :)
A great actor!