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NCIS Season 15 premiered on September 26, 2017 at 8pm EST in the United States and concluded on May 22, 2018.

Cast

Series Regulars

Season Fifteen Cast

Name Portrayed by Role
Leroy Jethro Gibbs Mark Harmon Special Agent in charge of the NCIS Major Case Response Team.
Abigail Sciuto Pauley Perrette Chief Forensic Specialist for the NCIS Major Case Response Team.
Timothy McGee Sean Murray Senior Special Agent and second-in command of the NCIS Major Case Response Team.
Nicholas Torres Wilmer Valderrama Special Agent for the NCIS Major Case Response Team.
Eleanor Bishop Emily Wickersham Special Agent for the NCIS Major Case Response Team.
James Palmer Brian Dietzen Assistant Medical Examiner for the NCIS Major Case Response Team.
Donald Mallard David McCallum Chief Medical Examiner for the NCIS Major Case Response Team.
Leon Vance Rocky Carroll Director of NCIS.
Clayton Reeves Duane Henry Officer with MI6 assigned to the NCIS International Desk.
Jacqueline Sloane Maria Bello Special Agent for the NCIS Major Case Response Team.

Cast Notes

As of NCIS Season 15, three of the five original cast members remain with the series (Mark Harmon, Pauley Perrette, and David McCallum). Sean Murray and Brian Dietzen appeared in Season 1 as recurring cast members and have appeared in all seasons. For Murray, he's appeared in every episode since the beginning of Season 2, when he was promoted to the main cast.

On June 9th, 2017, it was announced that Jennifer Esposito who played NCIS Special Agent Alexandra Quinn would not be returning for Season 15, due to the show going in a new creative direction.

Maria Bello later joined the show, making her debut appearance in the NCIS Season 15 episode, "Skeleton Crew".

Duane Henry departed the show after his character, Clayton Reeves was killed off in the episode, "Two Steps Back" while Pauley Perette (Abigail Sciuto) later left the series as well.

Trivia

  • NCIS Season 15 aired alongside NCIS: New Orleans Season 4, NCIS: Los Angeles Season 9, Hawaii Five-0 Season 8 and Scorpion Season 4.
  • The addition of Maria Bello's character, Dr. Jacqueline Sloane marks the introduction of a field agent who is also an operational psychologist into the parent series. The idea was first presented in NCIS: Los Angeles in the form of the character of Nate Getz.
  • This is also the first season since NCIS Season 12 not to have an episode that crosses over with its spin-off series, NCIS: New Orleans.

Episodes

NCIS Season Fifteen - Episode List

 
Episode Number Title Airdate Summary
Series Season
331 1 House Divided (episode) September 26, 2017. Two months after Gibbs and McGee were last seen fighting an elusive group of rebels in a Paraguay jungle, the NCIS team in D.C. tirelessly searches for their missing colleagues while Vance and Torres are summoned to a congressional hearing regarding the fallout from the Paraguay mission.
332 2 Twofer (episode) October 3, 2017. NCIS is called in to investigate when the body of a missing Navy Lieutenant who disappeared a year and a half ago is located by a cemetery grounds crew while they are relocating caskets on the property. As the team attempt to solve their latest case, Gibbs and McGee must pass a psych evaluation with Doctor Grace Confalone before officially resuming all work responsibilities
333 3 Exit Strategy (NCIS episode) October 10, 2017. While on a stakeout with Metro P.D., Torres's partner mysteriously vanishes with the subsequent investigation leading NCIS to uncover new evidence from a decade-old murder while Ducky's friend, Cadence Darwin presents him with a new opportunity during his guest lecture series.
334 4 Skeleton Crew (NCIS episode) October 17, 2017. Director Vance welcomes NCIS Special Agent Jacqueline "Jack" Sloane, a forensic psychologist he lobbied to transfer from California, to headquarters. Also, in the midst of a storm that has shut down Washington, D.C. and knocked out power, the NCIS team investigates the kidnapping of a sailor, which sends Torres and Bishop out to sea to track evidence.
335 5 Fake It 'Til You Make It (episode) October 24, 2017. After Reeves sees his friend get kidnapped, the NCIS team discovers the primary suspect disappeared two days ago with confidential military information while an embarrassing photo from McGee’s teenage years becomes a popular meme. This episode was presented out of sequence. Originally this episode was intended to be presented after Trapped. However for reasons that are unclear CBS decided to alter the schedule so that Fake it 'til You Make it will be shown before Trapped.
336 6 Trapped (episode) October 31, 2017 After a petty officer is found murdered on a golf course, McGee spends hours on the victim’s ham radio trying to locate a key witness while Palmer asks his co-workers to donate to a charity that builds playgrounds for kids of all abilities, and Torres surprises them with his generosity. This episode was presented out of sequence. Originally this episode was intended to be presented after Skeleton Crew. However for reasons that are unclear CBS decided to alter the schedule so that "Fake it 'til You Make" it will be shown before Trapped.
337 7 Burden of Proof (episode) November 7, 2017. After a convicted felon swears the NCIS agency framed him for murder a decade ago, Gibbs begins his own investigation, starting with a new autopsy by Ducky while Fornell joins the team since he was the lead investigator in the original joint FBI and NCIS case.
338 8 Voices (episode) November 14, 2017. An NCIS person of interest in a bribery and fraud case is found murdered after a runner is led to his body by a strange voice while McGee and Delilah disagree on whether to find out the baby's sex or keep it a surprise.
339 9 Ready or Not (NCIS episode) November 21, 2017. The team's Thanksgiving plans are put on hold while they track an elusive international arms dealer in D.C. who recently murdered an MI6 officer who was Sloane's close friend while Abby races Delilah to the hospital when her labor starts three weeks early.
340 10 Double Down (episode) December 12, 2017. As Torres and Sloane run protection detail for U.S. Senator John Phillips in Afghanistan for the holidays, they must urgently return to the States after hearing the senator’s son is in the ICU. As that happens, Gibbs and the rest of the team investigate the altercation that caused the life threatening injuries to the senator's son.
342 11 High Tide (episode) January 2, 2018. Torres and Bishop go undercover as a criminal couple available for hire, during an NCIS sting operation tracking illegal drug-running out of the Norfolk civilian marina.
341 12 Dark Secrets (episode) January 9, 2018. 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.
343 13 Family Ties (episode) January 23, 2018. After McGee and Torres visit the home of a high schooler who witnessed a hit and run, her parents, Christopher and Julie Bell, flee with their daughter, leaving NCIS in the lurch while Vance's daughter is arrested for shoplifting.
344 14 Keep Your Friends Close (episode) February 6, 2018. After the body of a missing Navy commander is found, Vance orders Gibbs and the team to work with former FBI Agent Tobias "T.C." Fornell, the private investigator who was hired to locate him while Bishop and Torres interview convicted investment advisor Albert Hathaway when the victim is linked to his highly publicized trial.
345 15 Keep Your Enemies Closer (episode) February 27, 2018. NCIS strikes a deal with convicted murderer Paul Triff, giving him a 48-hour furlough at his former residence, now McGee's home, in exchange for information that can convict his former cellmate, Gabriel Hicks, the murderer who deceived Gibbs and Fornell.
346 16 Handle With Care (episode) March 6, 2018. Gibbs and the team work to clear the name of retired Marine Sergeant John Ross when cyanide is found in one of the hundreds of care packages he sends to active-duty Marines.
347 17 One Man's Trash (episode) March 13, 2018. Gibbs and Ducky see an antique war stick on television that the two soon realize could be the missing murder weapon to a 16-year-old cold case.
348 18 Death From Above (episode) March 27, 2018. The NCIS headquarters are evacuated after the team discovers a body as well as bomb materials on the roof of the squad room. Also, the team reads the first draft of Ducky's book.
349 19 The Numerical Limit (episode) April 3, 2018. Gibbs is granted protective custody of a 10-year-old orphaned refugee, Elena, when an NCIS case reveals she is the target of a violent gang.
350 20 Sight Unseen (episode) April 17, 2018. NCIS searches for a Petty Officer suspected of assault who escapes when the sheriff transporting him crashes into a lake while Torres works closely with Annie Barth, a key blind witness who heard vital evidence needed to solve the case.
351 21 One Step Forward (episode) May 1, 2018. Sara Carter begs Gibbs to investigate her mother's murder as she believes the local authorities convicted the wrong man while Abby is awarded a dinner reservation for two to a brand-new five-star restaurant in an igloo and has to decide which coworker deserves to go with her.
352 22 Two Steps Back (episode) May 8, 2018. When evidence reveals an NCIS team member is a hitman's latest target, the team must search through old case files to determine who is seeking vengeance.
353 23 Fallout (NCIS episode) May 15, 2018. While Gibbs attends the memorial service for a friend who was lost at sea, he discovers that the deceased, Navy Captain Phillip Brooks, has been hiding in a fallout shelter after his boat was attacked and he swam to shore.
354 24 Date With Destiny (episode) May 22, 2018. Sloane is adamant that a man who held her hostage and tortured her years ago in Afghanistan, and was believed to have been killed following her rescue, is alive and in D.C., leading Vance and Gibbs to fear she is willing to risk everything to destroy this man.

Description

  • From the Region 2 DVD- The Best Never Rest- Confronting cold cases, running secretive stings and chasing down kidnappers are all part of the job for the unsung heroes of the Major Case Response Team in the suspense-packed Season 15 of NCIS. As the team continues to search the jungles of Paraguay for Special Agents Leroy Jethro Gibbs (Mark Harmon) and Timothy McGee (Sean Murray), the crimes keep coming. Co-stars Pauley Perette, Emily Wickersham, David McCallum, Brian Dietzen, Rocky Carroll, Duane Henry and Wilmer Valderrama are joined by Maria Bello as Special Agent and Forensic Psychologist Jacqueline Sloane to solve a suspicious suicide, run a protection squad and face the crimes and the criminals that threaten our country. Suspense rises in the ranks in this 24-episode, 6-disc set.
  v - e - d Seasons of NCIS
NCIS Season 1NCIS Season 2NCIS Season 3NCIS Season 4NCIS Season 5NCIS Season 6NCIS Season 7NCIS Season 8NCIS Season 9NCIS Season 10NCIS Season 11NCIS Season 12NCIS Season 13NCIS Season 14NCIS Season 15NCIS Season 16NCIS Season 17


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