Lee Min Ho - His acting never did anything for me, never made me feel any emotions from him.
Jang Hyuk - I liked him in Wok of Love, but something always feels off, I can't enjoy a lot of characters he plays, such as the way he ruined Voice for me. It could just be the characters he chooses to play, which are almost always morally ambiguous, aggressive male leads.
Lee Seung Gi - I tried watching many dramas, but his expressions really annoy me
Park Shin Hye - I watched many dramas where she was in, but I was never able to like her characters - no expressions, and she always looks constipated whenever she kisses someone
Jung Ryeo Won - I just never liked her in her roles
Park Yoo Chun - Again, I watched many dramas with him, but wasn't able to connect. Something about his expression bothers me, he looks so lifeless.
Lee Joon Gi, Joo Won, Jo In Sung, Jun Ji Hyun, Hwang Jung Eum - I couldn't bring myself to like them either.