a reply to: ketsuko
I think when they started the show back up in 2005, Davies kept it at a level that not only could the old fans identify with by remembering, but also
to attract a whole new generation to Doctor Who by keeping the companions as humans. The push is: The Doctor is the aliens, but deep down he really
does care for Earth and the humans on it.
The main theme of Doctor Who is this Time Lord who takes humans around in his TARDIS and shows them just how great (and at times stupid) humans can
be. That each person's story is important.
We (fans) love to see the Doctor foil yet again some new alien threat to Earth. We love to see him snatch someone from Earth and take them to new
places, places that even we the fans have never heard of.
From what we've seen of The Doctor, one of the things that he really likes to do is to show just how clever he is......and who better than the humans
that he seems so fond of protecting.
So while having a alien companion is interesting, I think it kind of is counter intuitive of the show.
Just my thought on that.
As for a female Doctor: I don't have a issue with it. But ONLY if they get the right actress. If they don't, it could kill the show.
Going to Capaldi after the younger and dashing Doctors played by Tenant and Smith, lost a lot of fan girls out there. Hard core fans were not bother
too much by it. But loose too many viewers and even the BBC will axe a show.
So if they did go with a female, it had better be the perfect one to play the role. For over 50 years this role has been played by a male and
traditions can be hard to break. You have to have the right person so that fans watching the show do not look at her and go: Oh look....some woman is
trying to play the Doctor.
Instead any actress that lands that role must make us fans think: Yes......this is still the Doctor.
I can only think of one instance where this has been done and it worked: Starbuck from Battlestar Galactica.
In the 1970's show, that role was played by Dirk Benedict. In the 2004-2009 version it was played by Katee Sackoff.
Thing is: Katee and the writers for the newer show made a different Starbuck who was a bit more darker and violent than the original played by Dirk.
So there really wasn't a comparison except that both characters liked to drink and gamble.
So even then, it's not quite the same thing as replacing the Doctor with a female actress. While each Doctor has been different in many ways that has
been the one constant that gives at least a little bit of continuity: the Doctor is always a guy.