Sam needs to be a vampire, okay? I was thinking of using Angel from BtVS/Angel's body for that.
Artemis is one of the non-powered kids on the super team so I want to show her what it's like to have some and preferably to overwhelm her with it. I have someone in game in mind to switch with if they are interested (plurk sent) and if not I was thinking maybe Cara from The Tomorrow People.
Kitty I'm still debating. I've had lots of mind-breaking thoughts that I'm going to pass on. I'm considering Husk from her own canon. If someone wants to switch with her in game let me know!
Yuuri is open! Anyone want him? Anyone want him to look like a missing castmate of yours? I might throw him in the randomizer later, but for now still thinking and looking around!