CHEAT TWEET: National Security & Twitter at risk! The #NCISLA team attempts 2 prevent a cyber attack Tues Sept. 27 9 PM, ET/PT http://bit.ly/qlTJpr 

          "Cyber Threat" - The NCIS team joins forces with the NSA to find the creator and controller of a software program linked to a cyber attack against the Department of Defense.  Meanwhile, Callen continues searching for more information about his past, on NCIS: LOS ANGELES, Tuesday, Sept. 27 (9:00-10:00 PM, ET/PT) on the CBS Television Network. 

SERIES REGULARS:

NCIS Special Agent

G. Callen................................ Chris O'Donnell

NCIS Special Agent

Sam Hanna.................................. .LL COOL J

Henrietta "Hetty" Lange................. .Linda Hunt

NCIS Special Agent

Kensi Blye ................................. Daniela Ruah

LAPD Detective

Marty Deeks..............Eric Christian Olsen

Tech Operator Eric Beale.........Barrett Foa

NCIS Intelligence Analyst

Nell Jones.......................... Renée Felice Smith

RECURRING CAST:

Lauren Hunter............................. Claire Forlani

GUEST CAST: 

Heather Marcum...................... Heidi Marnhout

Shawn Calder.......................... Nathan Gamble

Patricia Michaels............................. .Anne Son

Elizabeth Smith.......................... .Bridget Regan

Dennis Calder .............................. Jordan Belfi

Nicholas Delamico.................... .Bradley James

Salesperson .................. Stephan Smith Collins

Receptionist............................. .Elizabeth Bond

Assistant..................................... Amy Rasimas

WRITTEN BY:  R. Scott Gemmill

DIRECTED BY:  Dennis Smith

GENRE: DRAMA, CRIME, MYSTERY

RATING:  To Be Announced

Photos now available at http://www.cbspressexpress.com//.

On the Web: http://www.cbs.com/primetime/ncis_los_angeles/

Photos are available at http://www.cbspressexpress.com//

Facebook: https://www.facebook.com/NCISLA

Twitter: http://twitter.com/#!/NCIS_CBS

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Press Contacts: Katie Barker                818-655-1591     katie.barker@cbs.com

Kristen Hall                  818-655-7237      kristen.hall@cbs.com

Photo Contacts:            Nancy Eichenbaum       212-975-7627      NEichenbaum@cbs.com

Gaye Ann Bruno           818-655-1542      gayeann.bruno@cbs.com