I think they had a difficult time casting Sue because it was so vague and also so specific, which is kind of the curse of having a character that you love but also having no idea how someone could execute it.
I love being a bully on TV, people on set, they're scared of you at that point and you can really go over the top. If I'm just a regular girl I can just be myself, but if I'm being stuck up or a bully it's fun.