Alan Rickman could do Vetinari, but my personal vote goes for David Warner.
Vimes should be played by Clint Eastwood in his ‘The Good, the Bad, and the Ugly’ days. Brendan ‘Dudley Do-Right’ Frasier would make a great Capt Carrot. Eric Idle could play Rincewind and John Cleese could play Ridcully.
DEATH MUST BE VOICED BY JAMES EARL JONES.
Too human. Death’s voice would be done by whatever does that scary voice in Fellowship when Gandalf recites the words on the ring in the old tongue.
*Much * better.
Phew. wipes sweat off brow
Oh, as long as we’re doing pictures… 
I could see Paul Sorvino as Sgt. Colon.
I withdraw my Rickman. That’s perfect!
Vanessa Redgrave as Granny Weatherwax. Picture her running through a forest trying to jump start a broom.
Frank Langella (with a little studio processing) as the voice of Death.
Jeri Ryan as Angua.
Thought of another one.
Pre-Columbo **Peter Falk ** as Vimes.
Jeremy Irons would make a great Vetinari, and so would Jason Isaacs. And how about Sean Pertwee for Vimes?
I always pictured Chazz Palminteri as Vetinari. And Ian Holm’s portrayal of the semi-bumbling priest in 5th Element always made me think of Rincewind.
**Pat Morita ** as Lobsang.
No, Keira Knightley should play Angua. Susan has to be cynical and a bit off-putting. Someone with Fairuza Balk’s personality but Eliza Dushku’s style. Is Christina Ricci maybe too obvious?
Rhys Ifans as Rincewind is perfection (or maybe, at a pinch, Ryan Stiles) (or Mackenzie Crook from The Office).
And Jeremy Irons as Vetinari is a stunningly good idea.
As a slight aside, Paul Giamatti’s character in Planet of the Apes is a good match for The Librarian.
Joanna Lumley as Granny Weatherwax is excellent. An older Dawn French might be a good Nanny Ogg.
Terry sees Pete Postlethwaite as Vimes, but I personally think the choice of Paul Darrow is a great one (he played Vimes on stage).
I picture Carrot as Nicholas Lyndhurst, but he might be a bit too weedy. Maybe someone like Casper Van Dien.
Colon would be played by Mel Smith, of course.
Nobby could be Tony Robinson.
Jim Broadbent might make a good Ridcully, or perhaps one of the other Wizards. As would Geoffrey Rush, or Jonathan Pryce.
Hmmm…
I’ve always pictured either John Glover or Alan Rickman was Vetinari.
So many choices…
Gotta second Rhys Ifans as Rincewind, David Warner as Vetinari, and Pete Postlethwaite as Vimes (I didn’t know TP favored him as well. I had him pegged as Vimes after seeing “The Sins” a few years ago).
Sarah Polley as Susan StoHelit
Angelica Huston as Granny Weatherwax
Brian Blessed as Ridcully
Robbie Coltrane as The Dean
Jim Broadbent as Vitoller (Wyrd Sisters)
Adrian Brody as Verence
Akebono as the Librarian.
John Glover would make a good Mr Slant, the zombie lawyer.
I love the idea of Simon Pegg as Rincewind!
I always pictured Vimes as John Thaw, in his younger days (think The Sweeney - too bad he’s dead. Quite fancy his missus, Sheila Hancock, as Granny Weatherwax. Or Penelope Keith.
Robbie Coultrane would be great as Ridcully. And I’d love to get Bill Bailey in there somewhere, as someone…still working on who…
Can’t I just play myself?
Anyway, Angua’s blonde and busty – Keira Knightly about as busty as an ironing board with two peas on it.
I reckon Eddie Izzard should have a role in there somewhere, but again, I’m not sure where.
Vimes : John Noble anyone?
I think he has the looks, if not the voice.
Thanks to artist Paul Kidby, who collaborated with Pterry on the new coffee-table book The Art of Discworld (HarperCollins 2005) (http://www.amazon.com/exec/obidos/tg/detail/-/0060758279/ref=pd_sim_b_5/103-1562887-4572653?_encoding=UTF8&v=glance), we now have a canonical picture of how each Discworld character is supposed to look; so we can use that as a starting point in making casting choices.
