|Playing with Fire||Credits||Transcript|
In the aftermath of the explosion on board the U.S.S. Brewer, NCIS and the entire Navy race against the clock to find and stop who is responsible for causing the blast while battling to stop a global security crisis. When a similar device is found on the U.S.S. Benjamin Franklin which is docked in Italy, Tony and Ziva head to Italy to investigate and in doing so, are reunited with DiNozzo's predecessor.
|Leroy Jethro Gibbs||Mark Harmon||Special Agent in charge of the Major Case Response Team, NCIS.|
|Anthony DiNozzo||Michael Weatherly||Senior Special Agent, MCRT, NCIS.|
|Ziva David||Cote de Pablo||Junior Special Agent on the MCRT.|
|Abigail Sciuto||Pauley Perrette||Chief Forensic Specialist, NCIS.|
|Timothy McGee||Sean Murray||Special Agent, MCRT, NCIS.|
|Leon Vance||Rocky Carroll||Director of NCIS.|
|Donald Mallard||David McCallum||Chief Medical Examiner, NCIS.|
|Stanley Burley||Joel Gretsch||NCIS Special Agent trained by Gibbs, he is believed by many to have been DiNozzo's predecessor on the MCRT. This is Gretsch's first reappearance in the series since his debut appearance in High Seas (episode) nearly nine years ago.|
|Admiral Theodore Tully, USN||Nigel Gibbs||An Admiral with the Navy.|
|Emma Park (Playing with Fire), NCIS||Elizabeth Ho||Intelligence Analyst attached to NCIS|
|Andre Fullerton||James Harvey Ward||An arsonist responsible for attempting to blow up the U.S.S. Benjamin Franklin but fails thanks to Tony and Ziva arresting him.|
|Vincent Maple||Rick Peters||A man who appears in the episode.|
|Mrs. Johnson||Karina Logue||Bruce Johnson's wife.|
|Mail Carrier||Dan Martin||A man who appears in the episode.|
|Wayne Usher||Rob Nagle||A man who appears in the episode.|
|Security Guard (Playing with Fire)||Patrick Faucette||A man who appears in the episode.|
|Seaman (Playing with Fire)||Tony Christopher||A man who appears in the episode.|
|Tobey Abbott||Robert Sloan||One of the victims of the explosion that occurred on the USS Brewer.|
|Seaman Apprentice (Playing with Fire)||Maggie Henry||A woman who appears in the episode.|
|Harper Dearing||Richard Schiff||A reclusive billionaire who doesn't actually appear in the episode in person. Appears in a photograph late into the episode.|
- Stan Burley returns to help the NCIS team.
- Ducky reveals that he edited his will and that Gibbs is to be the executor of his estate in the Will.
- Abby later confirms that the person responsible for the terrorist attacks on the Navy ships is businessman Harper Dearing.
- Gibbs later applies Dearing's picture to the NCIS Most Wanted Wall, confirming that Dearing has become the biggest threat to the U.S since Osama Bin Laden.
|NCIS Season Nine|
|Nature of the Beast ♦ Restless ♦ The Penelope Papers ♦ Enemy on the Hill ♦ Safe Harbor ♦ Thirst ♦ Devil's Triangle ♦ Engaged Part 1 ♦ Engaged Part 2 ♦ Sins of the Father ♦ Newborn King ♦ Housekeeping ♦ A Desperate Man ♦ Life Before His Eyes ♦ Secrets ♦ Psych Out ♦ Need to Know ♦ The Tell ♦ The Good Son ♦ The Missionary Position ♦ Rekindled ♦ Playing with Fire ♦ Up in Smoke ♦ Till Death Do Us Part|