There aren't a lot of japanese actors working in the korean movie industry, but when they do, they always play a villain role. Like for example the acclaimed k-horror The Wailing , they got veteran actor Jun Kunimura. But what role does he play? Of course the demon. And I just watched Ma Dong Seok third Roundup film yesterday. There were two japanese actors in it. Of course they played the ''evil yakuza''. It's almost like Korea doesn't want japanese to portray good guys because of their history.