[quote=Slingshot]
As long as you're not playing as a character from the eu it's fine. Though for everybody's sake explain the source material and what it is. Even I haven't read every book or listened to every audio drama.
[/quote]

I was going to use an immortal, or a hunter.

http://tardis.wikia.com/wiki/Immortal
http://tardis.wikia.com/wiki/Hunter