Samuel "Sam" Vimes is a policeman from Terry Pratchett's Discworld series. His full name and title is His Grace, His Excellency, The Duke of Ankh, Commander Sir Samuel Vimes of the Ankh-Morpork City Watch. Other titles used occasionally are Ambassador for Ankh-Morpork as well as Blackboard Monitor Vimes. He first notes that he was given the position of Blackboard Monitor in school during The Fifth Elephant, and this title is initially treated as an honorable one by the Low King, as it is a task only given to the trustworthy. However, in Thud! this title becomes used as an insult by some fundamentalist dwarves, due to their near worship of words and therefore their horror at Vimes having destroyed words by erasing them from blackboards. He first appeared in the novel Guards! Guards!. While no detailed description of his physical appearance shows up in any of the Discworld novels, Pratchett says in the companion work, The Art of Discworld, that he has always imagined Vimes as British actor Pete Postlethwaite. Artist Paul Kidby, who has collaborated with Pratchett on several works, portrays him as resembling Clint Eastwood.