Daddyjoo

Um Ki Joon is once again excellent as Matthew the main villain, but I preferred his character in Penthouse. Hwang Jung Eum was unfortunately miscast for her role here, she was unconvincing as a villain. Jin Mo and Myoung Ji seemed to be more comedic but the actors are clearly meant for more dramatic roles. Ju Ran and Cheol Woo had much more obvious comedic potential, but were relatively underutilised this season. Here is my pitch for what should have been done:
Jin Mo as the brooding cop with a drug addiction
Myoung Ji as the gynaecologist dating the grandpa
Ju Ran as the gangster CEO of Cherry Entertainment
Cheol Woo as the art teacher

The main plot (between Matthew and Do Hyuk) is completely irrelevant to what went on with Dami, making the connection between the characters tenuous at best.