I'm def going to check out more projects of Ryu-jin. Capital Scandal, Y/Y?

You haven't watched it yet??? Watch it like.. YESTERDAY. It is one of the bestest , absolutely bestest dramas. Ryu-jin is AWESOME in it, but absolutely different. I didn't realised he is such a good actor.

Kim Sang-kyeong is better in movies, imho

For me too, I have seen him doing really serious stuff (like in "Memories of the Murder") and he was fantastic.