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
Kitty (CSI: Crime Scene Investigation) Kitty (CSI: Crime Scene Investigation) "Kitty" is an episode of . Kitty introduced FBI Agent Avery Ryan from which this episode served as the backdoor pilot of the series. Despite being credited Jorja Fox and Jon Wellner who portray Sara Sidle and Henry Andrews do not appear in this episode (although the latter does appear in a deleted scene). The episode begins with a house's security system being disabled. Then a dark figure walks into a bedroom and murders the woman in the bedroom. The scene cuts to Jim Brass (Paul Guilfoyle) yelling orders at the police officers and trying