I'm relatively new to Doctor Who; the first Doctor I saw was Christopher Eccleston. Thanks to magusjosh, I've seen something with every Doctor but Colin Baker. (So far, my favorites are Patrick Troughton and Sylvester McCoy and my least favorite is Peter Davison.)
After watching The Chaser's parody of Doctor Who fans, I was curious to see what other actors have played the Doctor outside of the well-known ten. I was surprised to learn that Rowan Atkinson played the Doctor in a parody called Doctor Who and the Curse of Fatal Death written by Steven Moffat (can the man write a bad episode?). Thanks to the power of You Tube, reveilles and I were able to watch it:
Both reveilles laughed so hard we had to wipe tears from our eyes. If you haven't seen it, enjoy!