Mark Harmon to executive produce, narrate 'NCIS: Origins' for CBS

Mark Harmon is set to narrate and executive produce the new drama "NCIS: Origins." File Photo by Jim Ruymen/UPI
Mark Harmon is set to narrate and executive produce the new drama "NCIS: Origins." File Photo by Jim Ruymen/UPI

Jan. 6 (UPI) -- Mark Harmon has signed on to executive produce and narrate NCIS: Origins, a new drama set in 1991 and following a young Leroy Jethro Gibbs, the character Harmon played on the flagship NCIS series for 19 seasons.

No on-screen casting for the military investigation series has been announced yet.

The show is expected to premiere in the 2024-25 television season.

"We are elated and honored to continue the expansion of the NCIS universe in such a unique and unexpected way," Amy Reisenbach, president of CBS Entertainment, said in a statement Friday.

"Viewers can look forward to Mark Harmon returning to CBS to narrate the complex and mysterious backstory of Leroy Jethro Gibbs' early years in NCIS: Origins, which will build on the rich legacy of this character while reintroducing fan-favorite characters and meeting new ones."

Left to right, Mark Harmon, Emily Wickersham, Brian Dietzen and Rocky Carroll arrive on the red carpet at the CBS 2014 Upfront Presentation at The Tents at Lincoln Center in New York City in 2014. File Photo by John Angelillo/UPI
Left to right, Mark Harmon, Emily Wickersham, Brian Dietzen and Rocky Carroll arrive on the red carpet at the CBS 2014 Upfront Presentation at The Tents at Lincoln Center in New York City in 2014. File Photo by John Angelillo/UPI

Season 21 of NCIS is slated to premiere in February.