William Petersen at the 63rd Annual Golden Globe Awards. January 16, 2006.Jeff Vespa/WireImage.com - Tuesday, October, 24, 2006, 12:24 AM

William Petersen stars as Gil Grissom in the CBS series CSI: Crime Scene Investigation.CBS/Andrew MacPherson - Tuesday, September, 19, 2006, 10:19 PM

Steve Carell with presenter William Petersen Best Actor in a Musical or Comedy Series - "The Office" 63rd Annual Golden Globe Awards - Press Room Beverly Hills, CA - 1/16/06Steve Granitz, WireImage.com - Thursday, September, 21, 2006, 10:21 PM

Steve Carell with presenter William Petersen Best Actor in a Musical or Comedy Series - "The Office" 63rd Annual Golden Globe Awards - Press Room Beverly Hills, CA - 1/16/06Steve Granitz, WireImage.com - Thursday, September, 21, 2006, 10:21 PM

Steve Carell with presenter William Petersen Best Actor in a Musical or Comedy Series - "The Office" 63rd Annual Golden Globe Awards - Press Room Beverly Hills, CA - 1/16/06Steve Granitz, WireImage.com - Thursday, September, 21, 2006, 10:21 PM

George Eads, Marg Helgenberger, Eric Szmanda, William Petersen, Jorja Fox and Paul Guilfoyle of "CSI" Outstanding Ensemble in a Drama Series Screen Actors Guild Awards - 2/5/2005John Shearer, Wireimage.com - Thursday, September, 21, 2006, 10:21 PM

William Petersen Golden Globes - 1/25/2004Jeff Vespa, Wireimage.com - Thursday, September, 21, 2006, 10:21 PM

William Petersen and Dennis Franz Presenters for Outstanding Supporting Actress in a Miniseries or Movie Emmy Awards - 9/19/2004Michael Caulfield, Wireimage.com - Thursday, September, 21, 2006, 10:21 PM

Mary Louise Parker of "Angels in America", presented by William Petersen Outstanding Supporting Actress in a Miniseries or Movie Emmy Awards - 9/19/2004Michael Caulfield, Wireimage.com - Thursday, September, 21, 2006, 10:21 PM

William Petersen, Marg Helgenberger 55th Annual Emmy Awards - 9/21/2003Michael Caulfield, Wireimage.com - Thursday, September, 21, 2006, 10:21 PM

William Petersen, Marg Helgenberger 55th Annual Emmy Awards - 9/21/2003Michael Caulfield, Wireimage.com - Thursday, September, 21, 2006, 10:21 PM

William Petersen and wife 55th Annual Emmy Awards - 9/21/2003Lester Cohen, Wireimage.com - Thursday, September, 21, 2006, 10:21 PM

Marg Helgenberger and William Petersen Emmy Awards - 9/22/2002Steve Granitz, Wireimage.com - Thursday, September, 21, 2006, 10:21 PM

Marg Helgenberger and William Petersen Emmy Awards - 9/22/2002Michael Caulfield, Wireimage.com - Thursday, September, 21, 2006, 10:21 PM

William Petersen Emmy Awards - 9/22/2002Steve Granitz, Wireimage.com - Thursday, September, 21, 2006, 10:21 PM

William Petersen and wife 53rd Annual Emmy Awards - 11/4/2001Steve Granitz, Wireimage.com - Thursday, September, 21, 2006, 10:21 PM

William Petersen as Gil Grissom CBS' "CSI: Crime Scene Investigation"Tuesday, September, 19, 2006, 10:19 PM

William Petersen as Gil Grissom CBS' "CSI: Crime Scene Investigation"Tuesday, September, 19, 2006, 10:19 PM

William Petersen as Gil Grissom CBS' "CSI: Crime Scene Investigation"Tuesday, September, 19, 2006, 10:19 PM

William Petersen as Gil Grissom CBS' "CSI: Crime Scene Investigation"Tuesday, September, 19, 2006, 10:19 PM

William Petersen as Gil Grissom CBS' "CSI: Crime Scene Investigation"Tuesday, September, 19, 2006, 10:19 PM