Various embarassing photos of male actors revealed

It seems as though the hot and handsome actors have a few past photos they would like to hide. Through an online community portal site, a series of pictures with the title, "The funny pictures of handsome actors" were uploaded. In one of the pictures, Kwon Sang Woo is seen with a funny facial expression. In another picture, Kang Dong Won sports a extremely curly hairstyle, making many fans and netizens laugh. Other embarassing pictures included Won Bin with his hand in a very awkward position near his nose, actor So Ji Sub's military picture, and a picture of Jo In Sung spacing out in an award ceremony. There was also another picture of him wearing an undershirt in a comical way. Netizens who saw this pictures stated, "We can understand all of this!" "Won Bin's picture is legendary!" "Despite these pictures, there is no embarrassment to the good looking people!" Can you identify each of the actors in the photo below? Source: TV Daily via Yahoo! Korea