I don't think I've ever seen her in anything, but it's awesome that they're casting a person with disabilities. I wonder if they'll work her missing leg into their version of Barbara?
Last season, they cast deaf actor Chella Man as Jericho, who's mute. So casting an actor with a disability doesn't necessarily mean the character will have the same one. Still, it's possible. It would certainly be a different take on how the Joker injured her, but the further removed it is from the problematical Killing Joke version, the better.