Jeez, David Jason has done enough on the Discworld.
Pete Postlethwaite would have been amazing as Vimes.
Going Postal had:
Ingrid Bolsø Berdal … Sergeant Angua
Kris Marshall could be an irritatingly shiny Captain Carrot.
Hah, Robert Linsay as Vimes, stretch him from his sitcom stasis. Trevor Eve may have the build but probably not interested in copper work.