Question of the Day - Which parts in a hit TV show do you think were really miscast and why?

Hey all, hope you all had a good weekend!

Today's Question of the day comes from Catarina

Which parts/actors in a hit TV show do you think were really miscast and why?

Catarina says
My votes go for:

Josh Radnor (Ted Mosby) on HIMYM (He is just too annoying and has no charisma).

Cobie Smulders (Robin Sherbatsky) on HIMYM (She is not WOW enough to play the part of a woman everyone vies for).

Kaley Cuoco (Penny) on TBBT (her ""talent"" can't be compared with that of the other cast members and it stands out).

What about you? Are there any characters/actors that you feel are miscast? Who would you have preferred to have filled that role? Sound off in the comments below.

You can see previous Questions of the Day here.

Thanks for all your suggestions and questions that you have been submitting, I try to pick out ones that I find interesting myself and that I think you'd all enjoy discussing. If I have not used one of yours yet, don't worry, it maybe tomorrows QOD!.