CSI: Crime Scene Investigation (season 13) Las Vegas ("In Vino Veritas"), Phillips heads to a high school reunion ("Dead of the Class"), and an investigation into a series of Dante's Inferno killings bring the CSIs face-to-face Black Sabbath ("Skin in the Game"), before jeopardizing the life of one investigator. In episode thirteen of the season, "CSI" staged a two-part crossover with its spin-off show "" in which Gary Sinise marked his first appearance in "CSI" and as his "CSI: NY" character Mac Taylor; cast member Ted Danson subsequently appeared in the "CSI: NY" portion of the story. Former cast member William Petersen also returned as Gil
CSI: Crime Scene Investigation (season 11) Vassey departs the cast in episode two of the season, while Jorja Fox rejoins the regular cast in the season premiere. Laurence Fishburne departs at the season's end. Former cast members William Petersen and Louise Lombard guest star. Elisabeth Harnois makes her series debut. <onlyinclude></onlyinclude> CSI: Crime Scene Investigation (season 11) The eleventh season of "" premiered on CBS on September 23, 2010 and ended May 12, 2011. The season stars Marg Helgenberger and Laurence Fishburne. Langston fights for his life ("Shockwaves") as Catherine meets a man from her past ("Pool Shark"), in the eleventh season of "CSI". Willows and