What if we started off with the master? Since when we talked in the other thread, I remember you saying something about not having the time war. Maybe the master and your Doctor could have had a rivalry at some point and he went bad at some point?

I also really liked the autons for the ninth's first episode, but I'm not really sure how we could incorporate them as well.

I think that the daleks and the cybermen should be in there as well. Maybe the daleks don't have as much of a hatred/fear for your doctor like they did for the one in the series, but still hate them nonetheless.

As for my character, he is a traveler, and I think that I should have him visiting London when he meets your Doctor.