Goo Yoon Pyo's mother played in "Sorry I love you" and she wasn't that awful, I was so sorry for her in this so my imagine of her is really different ;p but I agree with rest of actors ^^
I love him look and character in My girlfrind is Gumiho <3 but when I saw him when he was singer I was shocked O.O It was horrible. By the way I adore you No Min Woo :3