William
Louis Petersen (born February 21, 1953) is an American actor, best
known for playing Gil Grissom on CSI. Since 2000, Petersen has
gained his greatest fame starring as Dr. Gil Grissom in the CBS
crime drama CSI: Crime Scene Investigation. Petersen recently took
a break from CSI to appear in a five-week run of the Trinity
Repertory Company production of Dublin Carol in Providence, Rhode
Island. On the evening of Wednesday, May 30, 2007 Petersen was at
Wrigley Field to join WGN radio sportscasters covering a Chicago
Cubs – Florida Marlins game and he mentioned he had seen CSI:
The Experience at the Museum of Science and Industry on the South
Side of Chicago. He was on a nine-week break from the show at the
time, and he expressed how he and his castmates were “blessed”
to have such a successful series when he had seen shows starring
friends cancelled after only a few episodes. Petersen is an avid
Chicago Cubs fan, and will drop by Wrigley Field at least once a
year to sing the seventh-inning stretch. In 2004, Peterson
described to Playboy Magazine a near-death experience he had in
the 1980s. He said it made him assured that there is an afterlife.
He also showed up in the 2007 writers strike ... more