- Commander Samuel Vimes. For the way he develops from a drunk to a hero unafraid to tackle villains or argue with the Patrician.
- Death. For his compassion and for making me see humans from the viewpoint of someone who definitely isn't human.
- Moist Von Lipwig. The ultimate in reformed rogues. In real trouble with Vetinari at the start of Going Postal, with no sure way of getting out of it at all, the book takes off from there and hits the ground running.
- Granny Weatherwax. This witch can and does face down almost anything.
- Mustrum Ridcully. The Unseen University's Guiding Hand does not believe in subtlety. It's just as well really, he'd be no good at it.
- Nanny Ogg. This witch likes a good pint and a good time in equal measure and is clever enough to know it pays not to look clever. Granny Weatherwax would be lost without Nanny. Nanny is the foil to Granny in many respects.
- The Patrician, Lord Vetinari. Clever, oh so clever yet can issue dire threats with the best of them. And someone who can try and reform Moist Von Lipwig is capable of almost anything.
- Susan Sto Helit. Death's granddaughter has had a lot to get used to over the years. As a result she is impossible to shock (and some would say just plain impossible).
- Rincewind. The coward's coward has heroism thrust upon him at every opportunity. It was a shame really. He never wanted it.
- Albert. Once a powerful mage, now Death's personal servant. Is to grace, charm and good manners what a dung beetle is to grace, charm and good manners. And that's on a good day. Still nobody can smoke as ferociously as Albert and his cooking has to be seen to be believed. Probably best not eaten though.
And how to write your own characters. Read the works of other authors. You learn as you read. Just pick the best to learn from, that's all.