NCIS Season 19 premiered on September 20, 2021. The season will conclude on May 23, 2022.
|Leroy Jethro Gibbs||Mark Harmon||NCIS Special Agent in Charge.||Resigned.|
Episodes 1–4 only
|Timothy McGee||Sean Murray||NCIS Senior Special Agent.|
|Nicholas Torres||Wilmer Valderrama||NCIS Special Agent.|
|Jessica Knight||Katrina Law||NCIS Special Agent.||Former REACT Agent.|
|James Palmer||Brian Dietzen||Chief Medical Examiner.||Former Medical Assistant.|
|Kasie Hines||Diona Reasonover||NCIS Forensic Specialist.|
|Donald Mallard||David McCallum||NCIS Historian||Former Chief Medical Examiner|
|Leon Vance||Rocky Carroll||Director of NCIS.|
|Alden Parker||Gary Cole||NCIS Special Agent in Charge.||Former FBI Special Agent. |
Episode 2– present.
- On Tuesday, June 22, 2021, it was announced that Gary Cole (Alden Parker) had joined the series where Mark Harmon (Leroy Jethro Gibbs) is reducing more episodes and Katrina Law (Jessica Knight) had been promoted to series regular and that she was the replacement for Emily Wickersham (Eleanor Bishop).
- David McCallum (Ducky Mallard) is now credited before Rocky Carroll (Leon Vance), as well as receiving a "with" billing. Gary Cole (Alden Parker) now receives the "and" billing.
- After 19 years, Mark Harmon (Leroy Jethro Gibbs) departs the series after the fourth episode as a series regular.
- For this season, NCIS moves to a new slot: Mondays at 9pm instead of its regular slot of airing on Tuesday nights at 8pm.
- NCIS Season 19 currently airs alongside NCIS: Los Angeles Season 13 and NCIS Hawaii Season 1.
|415||1||1901||Blood in the Water (episode)||September 20, 2021||As the team searches for Gibbs after wreckage from his boat is discovered, they find out he was tracking a serial killer with journalist Marcie Warren, who wrote an exposé on him.|
|416||2||1902||Nearly Departed (episode)||September 27, 2021||While trying to find the serial killer Gibbs was after, the team discovers another person has been tracking the case as well.|
|417||3||1903||Road to Nowhere (episode)||October 4, 2021||Gibbs and Parker go on a road trip to find one of the serial killer's victims. Also Knight goes undercover at a large manufacturing company with ties to the murders.|
|418||4||1904||Great Wide Open (episode)||October 11, 2021||Gibbs and McGee head to Alaska while the team works at home to uncover the conspiracy behind the serial killer.|
|419||5||1905||Face the Strange (episode)||October 18, 2021||The team investigates the death of a Navy commander whose body suddenly explodes before Jimmy can examine it.|
|420||6||1906||False Start (episode)||November 1, 2021||The team investigates the death of a beloved Navy commander who trained some of the top athletes in the country.|
|421||7||1907||Docked (episode)||November 8, 2021||The team investigates the death of a man on a cruise ship whose body is discovered in the ship's sauna by none other than McGee's mother-in-law.|
|422||8||1908||Peacekeeper (episode)||November 29, 2021||The team investigates the case of a Navy reservist whose body is found in a beat-up car at the end of a gun range. Also, Kasie weighs the pros and cons of buying a gun.|
|423||9||1909||Collective Memory (episode)||December 6, 2021||When a hotshot financial advisor is found shot at a naval station, the team investigates the case of interviewing the victim's three-dimensional hologram of herself, which she created before her death.|
|424||10||1910||Pledge of Allegiance (episode)||January 3, 2022||The team is called in when a Navy chief warrant officer is suspected of trying to sell stolen classified Navy software used to pilot combat drones.|
|425||11||1911||All Hands (episode)||January 17, 2022||After a civilian research vessel in the North Atlantic picks up a small boat of wounded Navy officers, the team arrives on the ship and is forced to hide after discovering terrorists on board. Also, Knight takes a paper doll with her on the mission to capture photos for her niece's grade school class.|
|426||12||1912||Fight or Flight (episode)||January 24, 2022||When the body of a Navy lieutenant is discovered missing an eye, the team investigation leads to the world of cage fighting.|
|427||13||1913||The Helpers (episode)||February 28, 2022||While investigating the death of an intruder at Quantico, Jimmy and Kasie are exposed to a deadly biotoxin, and the team calls on Carol Wilson for help as they race to find the antidote. Also, Torres tries to distract Jimmy's daughter who came to the office to spend the day with her dad.|
|428||14||1914||First Steps (episode)||March 7, 2022||As the team investigates the cause of death of a reservist Navy Seal surgeon, they're forced to bring Vance's daughter, who recently trained with NCIS, to help with a highly dangerous mission.|
|429||15||1915||Thick As Thieves (episode)||March 14, 2022||Parker's delinquent past resurfaces when the team is called to Philadelphia to investigate the death of a Navy petty officer.|
|430||16||1916||The Wake (episode)||March 21, 2022||A gruesome mishap at a Navy petty officer's gender-reveal party leads the team to the case of a missing teacher that was popularized on a true crime podcast.|
|431||17||1917||Starting Over (episode)||March 28, 2022||The team investigates the apparent suicide of a retired Navy officer who was in Palmer and Knight's grief group. Also, Torres gets a call from Jane Tennant to come to Hawai'i when she gets a lead on a witness from a case they worked on together.|
|432||18||1918||Last Dance (episode)||April 18, 2022||When an infamous arms dealer is released from prison and bodies start piling up, Torres is forced to face the repercussions of his actions during an undercover operation he worked on years ago.|
|433||19||1919||The Brat Pack (episode)||May 2, 2022||The team investigates a ring of clever teenage partygoers when a string of break-ins takes place at Marine Base Quantico. Whereas working the case, McGee forms a bond with one of the teens.|
|434||20||1920||All or Nothing (episode)||May 16, 2022||The team investigates the unexpected death of a Navy reservist who was an investigative journalist. Also, Knight and Jimmy's budding romance is put on hold when a vital organ transfer goes fatally wrong.|
|435||21||1921||Birds of a Feather (episode)||May 23, 2022||When Parker is framed for murder, the team puts their jobs and lives on the line in order to buy time and uncover the truth.|
|Seasons of NCIS|
|NCIS Season 1 ♦ NCIS Season 2 ♦ NCIS Season 3 ♦ NCIS Season 4 ♦ NCIS Season 5 ♦ NCIS Season 6 ♦ NCIS Season 7 ♦ NCIS Season 8 ♦ NCIS Season 9 ♦ NCIS Season 10 ♦ NCIS Season 11 ♦ NCIS Season 12 ♦ NCIS Season 13 ♦ NCIS Season 14 ♦ NCIS Season 15 ♦ NCIS Season 16 ♦ NCIS Season 17 ♦ NCIS Season 18 ♦ NCIS Season 19 ♦ NCIS Season 20