GRISSOM AND THE CSI TEAM INVESTIGATE THE DEATH OF A BOY IN VEGAS WHO MIGHT BE A KIDNAP VICTIM, MISSING FROM NEW YORK SIX YEARS AGO, ON A REBROADCAST OF "CSI: CRIME SCENE INVESTIGATION," THURSDAY, FEB. 21

"Who & What" - In Part One of a two-part crossover episode to conclude on "Without A Trace," a kidnap victim from New York who went missing six years ago may be the same boy whose death Grissom and the CSI team are investigating in Las Vegas, on a rebroadcast of CSI: CRIME SCENE INVESTIGATION, Thursday, Feb. 21 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Anthony LaPaglia guest stars. (Originally broadcast 11/8/07)

SERIES REGULARS:

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
Hodges: Wallace Langham

RECURRING:

David Phillips: David Berman
Archie Johnson: Archie Kao
Wendy Simms: Liz Vassey

GUEST CAST:

Jack Malone: Anthony LaPaglia
Carmen Davis: Kim Beuche
Evan Michaels: Brett Coker
Tom Michaels: Denis O'Hare
Paul Fournier: Dig Wayne
Terry Wicker: John Hawkes
Soccer Player: A.J. Noel
Bloody Man: Tom Katsis
Det. Ruben Bejarano: Anthony Ruivivar
Floor Manager: Nicole Cannon
Station Yard Controller: Muse Watson
Hobo: Jasper Cole
Kobe: Nathan Gamble
Gina Farentino: Sarah Danielle Madison

WRITTEN BY: Allen MacDonald and Naren Shankar, one of the series' executive producers

DIRECTED BY: Kenneth Fink

RATING: TV-14-V