They re not psychics but the dead speak to them. Catherine Willows (Marg Helgenberger) Nick Stokes (George Eads) Sara Sidle (Jorja Fox) Warrick Brown (Gary Dourdan) and Greg Sanders (Eric Szmanda) are among the forensics experts of the Las Vegas Police Department s CSI unit headed by Gil Grissom (William Petersen) later D. B. Russell (Ted Danson) who use high-tech science and old-fashioned detective work to solve Sin City s most baffling and violent crimes in this popular and influential 2000-2015 CBS drama. 337 episodes on 93 discs. 244 hrs. Subtitles: English (SDH) Spanish. CSI: Crime Scene Investigation: The Complete Series (DVD).