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William Petersen poster

William Petersen

William Louis Petersen (born February 21, 1953) is an American actor, best known for playing Gil Grissom on CSI.

Appearances

'CSI' Star William Petersen Plans Primetime Return in 'Hurt People'
William Petersen Plans 'CSI' Return, 'Wonder Years' Star Visits 'SVU' & More Casting News
William Petersen Returns as Gil Grissom on 'CSI' (VIDEO)
'CSI' welcomes William Petersen back, briefly
William Petersen to Make Cameo on CSI