Fourth Doctor (Tom Baker)

Feminist who investigates everything no matter how dangerous -

http://en.wikipedia.org/wiki/Sarah_Jane_Smith

Relic of the British Empire, which he cannot possibly remember, the bumbling surgeon had his own special way -

http://en.wikipedia.org/wiki/Harry_Sullivan_(Doctor_Who)

You have got to love the absence of clothing; knife play, anyone -

http://en.wikipedia.org/wiki/Leela_(Doctor_Who)

2 for the price of one, blonde or brunette, skinny or voluptuous, why not visit them both -

http://en.wikipedia.org/wiki/Romana_(Doctor_Who)

He is a brat, ideal for a cougar -

http://en.wikipedia.org/wiki/Adric

Aussie with a uniform and an attitude -

http://en.wikipedia.org/wiki/Tegan_Jovanka

It is a mystery what she keeps under those voluminous skirts, so time for an expedition -

http://en.wikipedia.org/wiki/Nyssa_(Doctor_Who)