CSI: Crime Scene Investigation, also referred to as CSI and CSI: Las Vegas, is an American procedural forensics crime drama television series that ran on CBS from October 6, 2000, to September 27, 2015, spanning 15 seasons. It is the first series in the CSI franchise. The series originally starred William Petersen, Marg Helgenberger, Gary Dourdan, George Eads, Jorja Fox and Paul Guilfoyle. Other cast members included Eric Szmanda, Robert David Hall, Louise Lombard, Wallace Langham, Lauren Lee Smith, Ted Danson, Laurence Fishburne, and Elisabeth Shue. The series concluded with a feature-length finale, "Immortality".
Gilbert Arthur Grissom, Ph.D. is a fictional character portrayed by William Petersen on the CBS crime drama CSI: Crime Scene Investigation and its sequel, CSI: Vegas. Grissom is a forensic entomologist and for the series' first nine seasons, a CSI Level III Supervisor employed by the Las Vegas Police Department. He appeared in 193 episodes of the original series, where he was succeeded by Raymond Langston and later D.B. Russell. Grissom returned in the sequel series, CSI: Vegas, in 2021.
Elisabeth Harnois is an American actress. Her career started at the age of five, where she began appearing in a number of film and television roles. As a child, she starred as Alice in Disney's Adventures in Wonderland and as an adult, she starred as Morgan Brody in CSI: Crime Scene Investigation from 2011 to 2015.
"Pilot" is the pilot episode and the first episode of the first season of the American crime drama television series CSI: Crime Scene Investigation. Written by series creator Anthony E. Zuiker and directed by Danny Cannon, it first aired on October 6, 2000, on the CBS network in the United States. The premise of the show revolves around the crime scene investigators working for the Las Vegas Police Department, in what was known in this episode as the "criminalistics" division. The pilot introduces the main characters of Gil Grissom, Catherine Willows, Nick Stokes, Warrick Brown and Jim Brass ; and then-recurring character Greg Sanders. The pilot was written by series creator Anthony E. Zuiker and directed by Danny Cannon.
The first season of CSI: Crime Scene Investigation premiered on CBS on October 6, 2000, and ended on May 17, 2001. The series stars William Petersen and Marg Helgenberger.
The third season of CSI: Crime Scene Investigation premiered on CBS on September 26, 2002, and ended May 15, 2003. The series stars William Petersen and Marg Helgenberger.
The fourth season of CSI: Crime Scene Investigation premiered on CBS on September 25, 2003, and ended May 20, 2004. The series stars William Petersen and Marg Helgenberger.
The fifth season of CSI: Crime Scene Investigation premiered on CBS on September 23, 2004, and ended May 19, 2005. The series stars William Petersen and Marg Helgenberger.
The sixth season of CSI: Crime Scene Investigation premiered on CBS on September 22, 2005, and ended May 18, 2006. The series stars William Petersen and Marg Helgenberger.
The seventh season of CSI: Crime Scene Investigation premiered on CBS on September 21, 2006, and ended May 17, 2007. The series stars William Petersen and Marg Helgenberger.
The eighth season of CSI: Crime Scene Investigation premiered on CBS on September 27, 2007, and ended May 15, 2008. The season stars William Petersen and Marg Helgenberger.
The ninth season of CSI: Crime Scene Investigation premiered on CBS on October 9, 2008, and ended May 14, 2009. The series stars William Petersen, Marg Helgenberger and Laurence Fishburne.
The tenth season of CSI: Crime Scene Investigation premiered on CBS on September 24, 2009, and ended May 20, 2010. The series stars Marg Helgenberger and Laurence Fishburne.
The eleventh season of CSI: Crime Scene Investigation premiered on CBS on September 23, 2010, and ended May 12, 2011. The season stars Marg Helgenberger and Laurence Fishburne.
The twelfth season of CSI: Crime Scene Investigation premiered on CBS on September 21, 2011, and ended on May 9, 2012. The series stars Ted Danson, Marg Helgenberger and Elisabeth Shue.
The thirteenth season of CSI: Crime Scene Investigation premiered on September 26, 2012, on CBS, and ended on May 15, 2013. It stars Ted Danson and Elisabeth Shue.
The fourteenth season of CSI: Crime Scene Investigation premiered on September 25, 2013, on CBS, and ended on May 7, 2014. The season stars Ted Danson and Elisabeth Shue.
"Immortality" is the two-hour series finale of the American procedural crime drama television series CSI: Crime Scene Investigation. It was written by series creator Anthony E. Zuiker and directed by Louis Shaw Milito and originally aired in the United States on CBS on September 27, 2015.
"Kitty" is the twenty-first episode of the fourteenth season of the American crime drama television series CSI: Crime Scene Investigation. The 316th episode of the series overall, it was written by Ann Donahue, Carol Mendelsohn and series creator Anthony E. Zuiker, and directed by Eagle Egilsson, and originally aired on April 30, 2014 on CBS. "Kitty" introduced FBI Agent Avery Ryan from the spin-off series CSI: Cyber, for which this episode served as the backdoor pilot. Despite being credited Jorja Fox and Jon Wellner who portray Sara Sidle and Henry Andrews do not appear in this episode.
CSI: Vegas is an American crime drama television series that debuted on CBS on October 6, 2021. It is a revival of the 2000–2015 series CSI: Crime Scene Investigation, and the fifth and final series in the CSI franchise. The series stars Paula Newsome, Matt Lauria, Mandeep Dhillon, and Mel Rodriguez as new characters. William Petersen and Jorja Fox reprised their roles from CSI: Crime Scene Investigation as Gil Grissom and Sara Sidle during the first season before departing, while Marg Helgenberger reprises her CSI: Crime Scene Investigation role as Catherine Willows beginning with season two. Wallace Langham, Paul Guilfoyle and Eric Szmanda also reprise their roles as David Hodges, Jim Brass and Greg Sanders, in a guest capacity.