Commander Sam Vimes is Ironhead. Captain Carrot Ironfounderson is Captain Ankh-Morpork And Its Supporting Rural Environs. Sergeant Detritus is The Incredible Splatter. Sergeant Fred Colon is Wowhawk. Captain Angua Von Uberwold is Blonde Wolf. Sergeant Cheery Littlebottom is (sorry) Phwoar. They are brought together by the shadowy Havelock Vetinari, Agent of W.A.T.C.H.