THE TEAM INVESTIGATES A BURGLARY AT A CYBER-SECURITY COMPANY, BUT HETTY ORDERS CALLEN TO STAY AWAY FROM THE CRIME SCENE WHEN HIS GIRLFRIEND BECOMES A LEAD WITNESS, ON "NCIS: LOS ANGELES," MONDAY, DEC. 15

"Humbug" - The team investigates a burglary at a cyber-security company, but Callen must steer clear of the crime scene after Hetty reveals his girlfriend, Joelle, is one of the lead witnesses. Also, the team discusses their personal holiday travel plans, on NCIS: LOS ANGELES, Monday, Dec. 15 (9:59-11:00 PM, ET/PT) on the CBS Television Network.

REGULAR CAST:

Chris O'Donnell (NCIS Special Agent G. Callen)
LL COOL J (NCIS Special Agent Sam Hanna)
Linda Hunt (Operations Manager Henrietta "Hetty" Lange)
Daniela Ruah (NCIS Special Agent Kensi Blye)
Eric Christian Olsen (LAPD Detective Marty Deeks)
Barrett Foa (Tech Operator Eric Beale)
Renée Felice Smith (NCIS Intelligence Analyst Nell Jones)
Miguel Ferrer (NCIS Assistant Director Owen Granger)

GUEST CAST:

Elizabeth Bogush (Joelle Taylor)
Aunjanue Ellis (Michelle Hanna)
Travis Wester (Peter Weber)
Chad Todhunter (Leroy Moss)
Andrew Lawrence (Stuart Woods)
Joseph D. Reitman (Lincoln Tate)
Alice Hunter (Female LAPD UNI)
Brent Chase (Billy Rex)
Layla Crawford (Kamran Hanna)
Tye White (Aiden Hanna)

WRITTEN BY: Kyle Harimoto and Andrew Bartels

DIRECTED BY: Tony Wharmby