NCIS: Origins

"The story Gibbs never told."

—Tagline

NCIS: Origins
Genre	Military Police Procedural, Drama, Action, Mystery, Thriller.
Created by	David J. North Gina Lucita Monreal
Starring	Austin Stowell Mariel Molino Kyle Schmid Tyla Abercrumbie Diany Rodriguez Mark Harmon
Country of origin	USA
No. of seasons	2
No. of episodes	18
Production
Executive producer(s)	Mark Harmon Sean Harmon Gina Lucita Monreal David J. North Niels Arden Oplev

NCIS: Origins is the sixth installment in the NCIS franchise. Being a prequel to the original series, starting in 1991, it's about the early career of Leroy Jethro Gibbs during his years as NIS/NCIS Special Agent while still processing the trauma of the murder of his wife and daughter and will revolve around how Gibbs became an NCIS Agent and his life that was unseen prior to the events of JAG's Ice Queen/Meltdown and NCIS's Yankee White.

It's follows a young Leroy Jethro Gibbs (Austin Stowell) in 1991, years prior to the events of NCIS, and is narrated by the older Gibbs (Mark Harmon). In the series, Gibbs starts his career as a newly minted special agent at the fledgling NIS Camp Pendleton office where he forges his place on a gritty, ragtag team led by NCIS legend Mike Franks.

It premiered on October 14, 2024. In February 2025, the series was renewed for a second season.

Production

NCIS: Origins was announced in January 2024, with franchise mainstays Gina Lucita Monreal and David J. North acting as showrunners. The series is executive produced by Mark Harmon and his son Sean Harmon, who had played a younger Gibbs in flashback sequences on the original show.

Austin Stowell was cast as young Gibbs in March. Mariel Molino, Kyle Schmid, Tyla Abercrombie and Diany Rodriguez completed the main cast in March. Lori Petty and Bobby Moynihan joined the cast in July.

On November 7, 2024, CBS granted the series a full season order with an additional 5 episodes bringing the total episode count to 18 episodes.

The show is filmed on a 1990s era recreated set of Camp Pendleton built at Fort MacArthur, a former Army installation in San Pedro, California.

Characters/Cast

Main

Name	Portrayed by	Occupation	Note
Leroy Jethro Gibbs	Austin Stowell Mark Harmon	NIS Special Agent, a newcomer to the Pendleton branch of the NIS (Naval Investigative Service), the precursor to NCIS.	Mark Harmon reprises his role as the older Leroy Jethro Gibbs, a now-retired veteran NCIS agent who narrates the series.
Mike Franks	Kyle Schmid	NIS Supervisory Special Agent, a seasoned agent and leader of the team.	Franks was played by Muse Watson in the original series.
Lala Dominguez	Mariel Molino	NIS Senior Special Agent, a former Marine determined to stand out in the male-dominated workplace.
Mary Jo Hayes	Tyla Abercrumbie	Field Operation Support Officer, the self-described "Head Secretary in Charge".
Vera Strickland	Diany Rodriguez	NIS Special Agent, a tough, no-nonsense agent and Franks' former partner.	Roma Maffia played the character in the original series.
Bernard Randolf	Caleb Foote	NIS Special Agent, the team's golden boy.	AKA "Randy".

Recurring

Name	Portrayed by	Occupation
Cliff Wheeler	Patrick Fischler	Special Agent in Charge, head of Camp Pendleton Office.
Témet Téngalkat	Julian Black Antelope	San Diego County's Medical Examiner, an unfazed, experienced ME, with ties to NIS.
Lenora Friedman	Lori Petty	San Diego County's Pathologist and assistant medical examiner.
Woody Browne	Bobby Moynihan	Head of NIS San Diego Forencis Lab and an forensic analyst.
Philip Elertson	Ely Henry	NIS San Diego Forencis Lab's chemist who works with Woody.
Richard Kowalski	Michael Harney	Evidence Custodian, who used to be Army chaplain.
Herman Daniels	Daniel Bellomy	NIS Agent assigned as the Evidence Custodian's assistant and K-9 Gary Callahan's handler and partner. Aka “Herm”.
Dalton	Jeffrey Boehm	NIS Special Agent. Aka "Dalton Basement"
Carl Loughlin	Matthew Henerson	NIS agent.
Gail Price	Marisa Baram	NIS secretary.
Roger Murphy	Eric Normington	NIS agent who had a gambling problem.
JJ Henneberry	Aaron Wilton	NIS Special Agent.
Tishmal Kwa'la	Tonantzin Carmelo	Mike's girlfriend.
Jackson Gibbs	Robert Taylor	Leroy Gibbs’ father	Jackson was played by Ralph Waite in the original series before his death in 2014.
Smitty	Michael Shepperd	Bartender at Daly's Tavern
Todd	Eddie Alfano	Bouncer at Daly's Tavern
Noah Oakley	DaJuan Johnson	FBI Supervisory Special Agent and Wheeler contact/"friend".
Jamison Boyd	Jared Bankens	Criminal profiled by Vera.	AKA "Bugs".
Luke Fletcher	Adam Huber	Counsellor at the VA.	AKA "Sandman".
Ronald Barrett	Toby Haas	NIS Regional Derector, now temporarily SAC of Pendleton office.
Young Diane Sterling	Kathleen Kenny	Real Estate Agent and Leroy Gibbs' future second wife.
Mason Franks	Philip Winchester Matthew Erick White (young)	Mike's older brother.

Seasons

NCIS: Origins Seasons

Season	Episodes	Originally Aired
		First Aired	Last Aired
Season 1	18	October 14, 2024	April 28, 2025
Season 2	TBA	October 14, 2025	2026