I could do Dragon Age or Doctor Who, I favor the use of canons over OCs but I may be open to including them, providing the plot and characters seem to fit the setting. There's nothing more annoying than forcing OCs to fit where they don't belong. I'm an advanced writer, I play either gender and enjoy doubling (equal writing for all both roles). I do have some conditions for the fandoms I listed...

With Doctor Who, I really dislike Clara and River and prefer not to have them involved at all.

And with Dragon Age, I'm only halfway through Origins but I've met all companions, except the male dwarf the Grey Warden recruits in Orzammar. Here, I wouldn't mind more OCs or all OCs, granted their origins aren't too cliche or copy the game.