He's seen Pertwee and Davison and Tom Baker, and more of Traughton, and enough of McCoy that he became a fan of Ace.
We've seen him be grandfatherly and childlike and innocent, and always just a bit off. We've seen him against the Master, and with other Time Lords, and in other dimensions. We've watched him gain and lose Companions and regenerate but I don't know if we watched him learn.
Until last night, we'd only seen Christopher Eccleston and Rose in, well, Rose - thanks to scheduling and Shabbat and time constraints (our cable company is offering DVRs now.) But my brother-in-law downloaded them for us, and burned a DVD and we started watching last night, on our brand new DVD (the older one can't play computer recorded discs.)
And they're not recorded in any sort of order, nor are they labeled in a way that helps at all. "Doctor_who". So we can only go through and look for signs it's not a second or third episode. We watched three last night. "The Empty Child" and "The Doctor Dances" (yeah, we began with Jack.) and "Father's Day".
This isn't any doctor we know - maybe he's a finer actor than the others. There have been tears in Doctor Who before, but not like this. And there has been anger, too, but not like this. And even with Romana II and Tom Baker, who were actually in love at the time, there has not been such tension, because somehow, I can't think of Doctor Who and sex.
Except now I can.