KEY EVIDENCE IN A NCIS MURDER INVESTIGATION LEADS GIBBS AND THE TEAM TO McGEE'S GRANDMOTHER, ON A REBROADCAST OF "NCIS," TUESDAY, JAN. 24

Emmy, Tony and Grammy Award Winner Lily Tomlin Guest Stars as Penelope Langston, McGee's Grandmother

"The Penelope Papers" - The line between McGee's personal and professional life is blurred when NCIS uncovers a connection between his grandmother and the murder of a Navy lieutenant, on a rebroadcast of NCIS, Tuesday, Jan. 24 (8:00-9:00 PM, ET/PT) on the CBS Television Network. Lily Tomlin guest stars as Penelope Langston, McGee's grandmother. (Originally broadcast 10/4/11.)

SERIES REGULARS

Mark Harmon (NCIS Special Agent Leroy Jethro Gibbs)
Michael Weatherly (NCIS Special Agent Anthony 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)

RECURRING CAST

Brian Dietzen (Jimmy Palmer)

GUEST CAST

Lily Tomlin (Penelope Langston)
Sam McMurray (John Westfal)
David Clennon (Max Ellswood)
Hillary Tuck (Justine Booth)
James Connor (Andrew Pike)
Matthew Alan (Navy Lieutenant Paul Booth)

WRITTEN BY: Nicole Mirante-Matthews

DIRECTED BY: Arvin Brown

RATING: To Be Announced