Try not to sound too much like a wicked witch, but if you want to you can. I'm up for experimenting on her voice. I would prefer a completely unique take on her. If you know how she sounds in English then block her VA out and create your own.

But please use an American accent, area doesn't really matter too much.

Try to also add a bit of seductivness too, but make sure to prioritise her cruel personality. And don't talk too slow, a mistake often made when being seductive.