Do you have any actors/actresses that you just can't seem to appreciate?

I'm assuming that I'm not the only one who has an actor or actress (or more) that just doesn't click with your tastes. For me, it would have to be Amy Acker in the villian role which is the only role I've seen her attempt. I've watched Amy's performances in Person of Interest, Dollhouse, and Alias. I have not watched Angel. I've also seen her appear briefly in some other shows.

One thought on Amy's roles:
I love a good enthusiastically evil villian, but it's a harder role to pull off successfully than the more realistic cold & calculating serial criminal. Amy's characters largely seem to really enjoy what they are doing, to be having "fun". She has a nice smile, and uses it and other pleasant body language a fair bit as she's doing distasteful deeds. Combine that with a steady flow of puns, her casual to playful delivery/tone, and you get an attempt at the "bad girl who loves being bad." But I can't find it believable. Even from the angle of psychosis, she's still too over-the-top.

I realize that that the majority of users on this discussion forum will have a very different opinion of Amy than myself, and I respect that. On the other hand, I can't imagine that I'm the only person out there who feels that A) I'd like to see Amy in different roles, there's a good chance I'll enjoy them more B) By putting her in other roles, you open up a spot for more suitable actresses.