I'd love to see more Doctor Who characters at
thegladiators. Companions, the Master, other regenerations of the Doctor -- anyone you can think of! If there's a character from the show (old or new Who!) you've always wanted to play, I think this is a great place to do it.
Some specific requests:
Eleven: I'd really love to see any and all of the other regenerations, but I think it would be fun for Ten to meet his future self. He's already heard a little bit about Eleven from Amy, but I think it would be fun for the two of them to actually meet, interact, and team up to drive everyone else mad. And also to find a way out of the island they're trapped on. Amy and Rory are already in game, so that should also be incentive.
Idris: The Doctor has no truer love than the TARDIS. It would be a lot of fun to see how Ten would react to meeting a human containing the soul of the TARDIS. Since the premise of the game involves aliens intent on keeping everyone alive for entertainment in arenas, they would keep the Time Vortex from burning her up. I'm not necessarily looking for anything romantic here, but it'd be really interesting to see how awkward and flirty Ten would get.
The other Nine regenerations: I'm really, really intrigued by multi-Doctor scenarios, so I'd absolutely love to see any and all of the other regenerations of the Doctor and that really, honestly does include all the "old Who" Doctors as well. They all have such different and occasionally clashing personalities, it'd just be a lot of fun.
There are so many others I'd love to see too including Jackson Lake, Reinette, Jenny (the Doctor's daughter), and all the other companions including (but not limited to) Rose, Martha, Donna, Jack, Mickey, Sarah Jane, etc. And I'd like to see the Master! The game in general needs more villainous types.