episode. On July 15, 2008, the Associated Press reported that Petersen was leaving the show as a regular following Season 9's tenth episode in order to pursue more stage-acting opportunities, but that he might return for guest spots. He remained an executive producer of the show. He reprised his role of Gil Grissom in the eleventh-season episode "The Two Mrs. Grissoms" (aired February 3, 2011). He came back in 2015 as a guest in the series finale, "Immortality." In February 2020, Petersen announced to return for a CSI sequel series along with Jorja Fox, before the series was picked up as CSI: Vegas. Personal life In 1975, Petersen and his then wife Joanne Brady welcomed a daughter, Maite. In June 2003, Petersen married his longtime girlfriend Gina Cirone. On July 5, 2011, Petersen and Cirone welcomed twins, a daughter and son, via surrogate. Peterson is an avid Chicago Cubs fan. In 2004, he described to Playboy a near-death experience he had in the 1980s which gave him "assurance" that there is an afterlife. In August 2021, Petersen was taken to the hospital via ambulance after feeling unwell on the set of CSI: Vegas. He was experiencing symptoms of exhaustion after 12 weeks of shooting, and released from the facility soon after. Honors On February 3, 2009, Petersen received a star on the Hollywood Walk of Fame. Filmography Film Television Video games Production credits CSI: Crime Scene Investigation CSI: Vegas Keep the Change as producer Hard Promises as producer Live theatre Remains Theatre Indulgences in a Louisville Harem (1980) Sixty Six Scenes of Halloween (1981) The Tooth of Crime (1984) as Hoss (nominated by Joseph Jefferson Awards) Balm in Gilead (1981–82) as Joe Conroy Moby Dick (1984) as Ahab A Class "C" Trial in Yokohama Big Time (1987) as Paul American Buffalo (1991) as Teach Once in Doubt (1992) as Painter The Chicago Conspiracy Trial (1992) Waiting for Godot The Time of Your Life as Joe Farmyard Traps Speed the Plow (1987) as Bobby Gould Steppenwolf Theatre Company Source: Steppenwolf Balm in Gilead (1981) as Joe Conroy Fool for Love (1984) as Eddie Dublin Carol (2008) as John Plunkett Endgame (2010) as Hamm Slowgirl (2013) as Sterling The Minutes (2017) as Mayor Superba Goodman Theatre Gardenia by John Guare (1983) as Unknown The Time of Your Life (1984) as Joe Glengarry Glen Ross (1984) as James Lingk The Night of the