GIBBS TEAMS UP WITH FBI AGENT FORNELL ON AN ATTEMPTED MURDER CASE THAT TAKES A TURN WHEN THEIR MUTUAL EX-WIFE GETS INVOLVED, ON "NCIS," TUESDAY, DEC. 11

Joe Spano ("Hill Street Blues") and Melinda McGraw ("Men of a Certain Age" "Mad Men") Return

"Devil's Trifecta" - Gibbs teams up with FBI Agent Fornell on a joint NCIS/FBI investigation after Fornell becomes the target of a shooting, but they face an unexpected twist in the case when their mutual ex-wife, Diane Sterling, gets involved. Meanwhile, rumors run wild among the group after Diane stays overnight at McGee's, on NCIS, Tuesday, Dec. 11 (8:00-9:00 PM, ET/PT) on the CBS Television Network. Joe Spano ("Hill Street Blues") reprises his role as Senior FBI Agent T.C. Fornell and Melinda McGraw ("Men of a Certain Age," "Mad Men") returns as Diane Sterling.

SERIES REGULARS

Mark Harmon (NCIS Special Agent Leroy Jethro Gibbs)
Michael Weatherly (NCIS Special Agent Anthony "Tony" DiNozzo)
Cote de Pablo (NCIS Special Agent Ziva David)
David McCallum (Dr. Donald "Ducky" Mallard)
Pauley Perrette (Abby Sciuto)
Sean Murray (NCIS Special Agent Timothy McGee)
Rocky Carroll (NCIS Director Leon Vance)
Brian Dietzen (Jimmy Palmer)

GUEST CAST

Joe Spano (Senior FBI Agent T.C. Fornell)
Melinda McGraw (Diane Sterling)
Danny Nucci (Gordon Fremont)
Colby French (Viggo Kiln/ Drunk Guy)
Will Beinbrink (Oliver Lambert)
J. Downing (Avis Boyle)
Trevor Torseth (Al Parker)
Noree Victoria (Female Guest)
Brendan Bradley (Male Guest)

WRITTEN BY: Steven D. Binder

DIRECTED BY: Arvin Brown

RATING: To Be Announced