Hmmm, think I'm at the point where I'm whittling down the bad ideas so I can get them out of my head, since my current idea is to take an obscure character and "modernize" them.  In this case, Professor Gamble, and by "modernize" I mean "base him more on Peter Capaldi's Doctor than Tom Baker's". XD But I might come up with a more sensible idea later.  Hopefully. ^^;

Then again I always seem to be drawn away from A-list characters when it comes to this kind of thing for some reason.  Probably because I feel like there's less pressure and lower expectations if I'm using a less well-known character. XD