God, the animation looks so bad. This is Archer-levels of animation. As for Cheetah, I'm sure she's only there to pad out the body count. I hope I'm...
Probably hasn't happened as often as one might expect, now that I think about it. Maybe just once against Zoom in Johns' run? Even then I don't think...
Believe they have to get Carter's permission everytime they want to use her likeness, given it's just a short story in a one shot probably not worth...