William Petersen

William Petersen

William Louis Petersen is an American actor and producer. He is best known for his role as Gil Grissom in the CBS drama series CSI: Crime Scene Investigation, for which he won a Screen Actors Guild Award and was nominated for a Golden Globe Award; he was further nominated for three Primetime Emmy Awards as a producer of the show. He also starred in the films To Live and Die in L.A., Manhunter, Young Guns II, Fear, The Contender, Detachment, and Seeking a Friend for the End of the World.