NEW FORENSIC EVIDENCE DISCOVERED IN AN OLD CASE CAUSES AN UNEXPECTED SHAKE-UP WITH GRISSOM AND HIS TEAM, ON �CSI: CRIME SCENE INVESTIGATION,� THURSDAY, NOV. 25

Louise Lombard (�Hidalgo�) Guest Stars

�Mea Culpa� � An undetected piece of evidence in an old murder case has the graveyard shift under internal investigation, on CSI: CRIME SCENE INVESTIGATION, Thursday, Nov. 25 (9:00-10:00 PM, ET/PT) on the CBS Television Network. David Grossman directed the episode from a story by Carol Mendelsohn, one of the series� executive producers, and Josh Berman, one of the series� co-executive producers and teleplay by Josh Berman.

Louise Lombard (�Hidalgo�) guest stars as a dayshift CSI investigating Grissom and his team.

After a murder trial is reopened to explore new forensic evidence, Grissom discovers a previously undetected fingerprint on a piece of evidence during his cross-examination. This oversight is an opportunity for new assistant lab director Conrad Ecklie (Marc Vann) to put Grissom and his nightshift team under the microscope.

Gil Grissom: William Petersen
Catherine Willows: Marg Helgenberger
Warrick Brown: Gary Dourdan
Nick Stokes: George Eads
Captain Jim Brass: Paul Guilfoyle
Sara Sidle: Jorja Fox
Greg Sanders: Eric Szmanda
Dr. Robbins: Robert David Hall
David Phillips: David Berman
Sophia Curtis: Louise Lombard
Mia Dickerson: Aisha Tyler
Conrad Ecklie: Marc Vann
Hodges: Wallace Langham
Neil Jansen: Jason Segel
Jeffrey Sinclair: Erik Jensen
Detective Vartan: Alex Carter
Jason Garbett: John DeMita
Keith Garbett: Jaoson London
Judge Witherspoon: Tina Lifford
Mrs. Katz: Nana Visitor
Rich Rebba: Bobby Hosea
Max Larson: Stefan Marks
ATF Agent: Kenny Morrison
John Bergman/ATF Suit: John Lacty
Bobby Dawson: Gerald McCullouch
Brad Lewis: Terry Bozeman
Margaret Finn: Palmer Davis