XIII (Thirteen) is a Belgian graphic novel series written and drawn by Jean Van Hamme and William Vance, about an amnesiac protagonist who seeks to discover his concealed past. With its plot inspired by Robert Ludlum's book The Bourne Identity, XIII was initially serialised in 1984 in Spirou, and was later published by Dargaud. In 2003, the storyline of the first five volumes was adapted into a video game, also titled XIII, that was released on several platforms. XIII: The Conspiracy, a Canadian TV film based on the series and starring Val Kilmer and Stephen Dorff, was released in 2008. It was followed in 2011 by a 13 episode TV series called XIII: The Series, starring Stuart Townsend and Aisha Tyler.