GIBBS AND THE TEAM CONDUCT THEIR OWN THOROUGH INVESTIGATION AFTER A SEEMINGLY HAPPY AND SUCCESSFUL NAVY LIEUTENANT APPEARS TO HAVE TAKEN HER OWN LIFE, ON "NCIS," TUESDAY, JAN. 9

Patrick Labyorteaux Guest Stars as JAG Navy Captain Bud Roberts, Jr.

"Dark Secrets" - After a seemingly happy and successful Navy Lieutenant appears to have taken her own life, Gibbs and the team conduct a thorough investigation, interviewing family and friends from her past and present, on NCIS, Tuesday, Jan. 9 (8:00-9:00 PM, ET/PT) on the CBS Television Network. Patrick Labyorteaux guest stars as JAG Navy Captain Bud Roberts, Jr, who worked with the deceased.

REGULAR CAST:

Mark Harmon (NCIS Special Agent Leroy Jethro Gibbs)
Sean Murray (NCIS Special Agent Timothy McGee)
Emily Wickersham (NCIS Special Agent Eleanor "Ellie" Bishop)
Pauley Perrette (Forensic Specialist Abby Scuito)
Wilmer Valderrama (NCIS Special Agent Nicholas "Nick" Torres)
Maria Bello (Special Agent Jacqueline "Jack" Sloane)
Brian Dietzen (Dr. Jimmy Palmer)
Duane Henry (MI6 Officer Clayton Reeves)
Rocky Carroll (NCIS Director Leon Vance)
David McCallum (Dr. Donald "Ducky" Mallard)

GUEST CAST:

Patrick Labyorteaux (JAG Navy Captain Bud Roberts, Jr.) Kaitlyn Black (Navy Lieutenant Melissa Newhall / Rita)
James Read (Alan Newhall)
Gina Hecht (Christine Newhall)
Valery Ortiz (Kerry Lyons)
Brian Hallisay (David Crocker)
Nathan Sutton (Barry Goode)
John L. Bader (Desk Clerk)
Mark Dippolito (Sleazy Guy)

WRITTEN BY: George Schenck and Frank Cardea

DIRECTED BY: Bethany Rooney