North, as well as CBS Studios, which is behind theNCISfranchise.

Narrated by Mark Harmon,NCIS: Originsbegins in 1991, years prior to the events ofNCIS.

(On the mothership series, Franks has been a recurring character played by Muse Watson.

(Clockwise from Top L-R) Mark Harmon, Gina Lucita Monreal, David J. North and Sean Harmon

(Clockwise from Top L-R) Mark Harmon, Gina Lucita Monreal, David J. North and Sean HarmonBrian Bowen Smith/CBS/Joanna DeGeneres/Courtesy/Courtney Harmon

Search will be launched for an actor to play the lead in the spinoff.

This really is the making of Leroy Jethro Gibbs, the duo said.

And even the most dedicatedNCISfans will discover that they dont know the whole story.

2025 TV Premiere Dates

Sean Harmon in ‘NCIS’CBS

This is CBS fourth new scripted series for the 2024-35 season, joining dramasMatlockandWatsonand comedyPoppas House.

NCISis one of CBS Studios most valuable franchises.

NCIS: Originsreunites North and Monreal, who both wrote onNCISfor 10 years.

Casting on the spinoff is being handled byNCIScasting directors, Jason Kennedy, Krysti Baxter, and Meredith Goble.

Mark Harmon is repped by Gersh and attorney Barry Axelrod.

Sean Harmon is repped by 3Arts Entertainment, Gersh and Genow Goodman.

Monreal is repped by CAA, Mosaic, and Felker Toczek Suddleson Abramson McGinnis Ryan.

North is repped by Dan Halsted Manage-Ment.