Been beaten to it by most of these! Agree with the PP about the BBC Pride and Prejudice adaptation: the actors who played Mr Collins and Lady Catherine made it for me.
Adding another +1 to the appalling bully-girl Alicia Johns and dear old Julian Kirrin, punctilious, pompous little prick that he is. Likewise, Bridget Jones can get in the bin.
Mr Tansley (the bloke in To The Lighthouse who's always saying 'women can't paint, women can't write' is another eye-scourer for me.
Likewise, Stephen Dedalus. Like a grown-up Jesuit version of Julian Kirrin.
P D James's Adam Dalgliesh. Unkind, judgemental, ageist, disablist, sexist, food snob, intellectual snob. What's to like?
Every single character from the novel Atonement - there isn't a redeeming feature among the lot of them!