Kim is a short 31 year old (will turn 32 before the beginning of the 2013 season) right-handed pitcher that has pitched both out of the bullpen and as a starter. After struggling in 2011 with a 4.71 FIP, Kim bounced back slightly in 2012 but still only had a 1.63 K/BB. However, opponents had just a .671 OPS and .110 ISO. This was down from the .754 OPS from 2011, but a lot of this seems DIPs and BABIP related, as his strikeout rate actually dwindled.
Here is some video of his delivery:
As you can see, it is sort of violent, and Kim comes with an injury risk (the height can't help). Evidently, he lost some of his fastball velocity when he came back from mandatory military service. His fastball (this from KBO Data) sits anywhere between 86-91 MPH, along with an occasional two seamer that is slightly slower than this to get him grounders (over the last two years, he has given up more fly-balls than ground-balls, getting more grounders in 2011 but got my fly-balls in 2012). He also will throw a rare changeup in favorable counts. His main off-speed pitches are his forkball (73-82 MPH), a slider (73-84 MPH), and a curveball (67-77 MPH).
Hong is a 35 year old right-handed hitting left-fielder (that used to be a catcher). Once an elite hitter in the KBO, Hong took a big step back in 2011 (especially power wise) before coming back somewhat (though not all the way) in 2012.
Here is a video of him hitting a homer: