See Medusa, we can have a Doctor Who story without the Doctor. Now what was it you were saying about Love and Monsters again?
I couldn't resist.
ahem, anyway, just to help our new found fan Aquamarine out ...
(I almost shed a tear, I feel like a parent watching their child discovering something new and amazing)
Doctor 1 - William Hartnell
(though in later cross-re-generation stories he was played by another actor as Hartnell had passed away)
Doctor 2 - Patrick Troughton
(also deceased)
Doctor 3 - Jon Pertwee
(also made his name as Worzel Gummige. JP is also deceased)
Doctor 4 - Tom Baker
(the one with the scarf, curly hair, and jelly babies and without a doubt, the most memorable)
Doctor 5 - Peter Davidson
(also made his name on "All Creatures Great and Small")
Doctor 6 - Colin Baker
(or as I like to think of him, "the big whoops")
Doctor 7 - Sylvester McCoy
(was the last actor the play The Doctor before the original DW run ended after 30 odd years)
Doctor 8 - Paul McGann
(one off appearance in the 1999 American co-produced tv movie)
Doctor 9 - Christopher Eccleston
(relaunched DW for the 21st century, only stayed on for one season (didn't want to be "type cast") and has since gone on to guest star on Heroes who has the power of invisibility)
Doctor 10 - David Tennant
(the current Doctor (set to enter his third year next year) and the one actor who has managed to shake the foundations of Tom Baker's claim to greatness)