He's an art director/story boarder/clean-up artist/etc. who's worked on Godzilla, Starship Troopers, The Jackie Chan Adventures, The Spider-Man, The Batman TV Series (2003-2005), The Boondocks and more.
He is very skilled at drawing. Some people outside of the art field tend to think cartoonists or comic people can't draw well, so they do comics. The opposite is true. Kim may be the best drawer I've ever seen and I look at his stuff for help.