NCIS ASSISTS THE DEA ON A DRUG-RUNNING CASE AFTER GIBBS AGREES TO HELP A FRIEND WHO SHARES A TRAGIC PAST, ON "NCIS," TUESDAY, SEPT. 29

"Personal Day" - Gibbs calls on the team to assist DEA Agent Luis Mitchell (John Gabriel)
with a case that keeps going cold, but DiNozzo discovers there is more to Gibbs' personal connection to the agent and his desire to help him succeed. Also, the team gossips about Gibbs' new look after he replaces his standard military haircut and polo shirt for a modern cut and tailored dress shirt, on NCIS, Tuesday, Sept. 29 (8:00-9:00 PM, ET/PT), on the CBS Television Network.

REGULAR CAST:

Mark Harmon (NCIS Special Agent Leroy Jethro Gibbs)
Michael Weatherly (NCIS Special Agent Anthony "Tony" DiNozzo)
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)
Emily Wickersham (Probationary NCIS Agent Eleanor "Ellie" Bishop)

GUEST CAST:

Robert Knepper (Benson Long)
John Gabriel (DEA Special Agent Luis "Mitch" Mitchell)
Billy Lush (Fisher Hyland)
Darin Cooper (Roy Evans)
Nefetari Spencer (Realtor)
Myles Grier (Startled Man)

WRITTEN BY: Gina Lucita Monreal

DIRECTED BY: Terrence O'Hara