Cast Member

Gil Grissom

William Petersen


William Petersen stars as Gil Grissom in CSI: Crime Scene Investigation. Petersen is best known for his role as secret service agent Richard Chance in the action film “To Live and Die in L.A.” as well as for his role as FBI agent Will Graham in the film “Manhunter.”

Petersen’s other feature film credits include “Thief,” “Amazing Grace and Chuck,” “Cousins,” “Young Guns II,” “Hard Promises,” “Passed Away,” “Fear” and “Detachment,” amongst others.

In television, William is known for his performance as Colonel Emmett Darrow in the drama series “Manhattan.” His other television credits include “Long Gone,” “Keep the Change,” "The Beast,” “12 Angry Men,” “The Staircase” and “Haven.”

Petersen was nominated for several awards for his performance in CSI: Crime Scene Investigation, including a Golden Globe Award and a Screen Actors Guild Award, which he won. He was also nominated for three Primetime Emmy Awards as a producer of the show.