What would be some appropriate nicknames for a chat session with The Doctor?

-is making a fanvideo- So I'm trying to find nicknames for a Doctor Who chat room, and I wanna incorparate ALL Of the new series' characters, so far I have

xxFezzesAreCoolxx - Eleven
The-Girl-Who-Waited - Amy
The-Brave-Idiot - Rory

Any suggestions?