NCIS, the military-action procedural created by Donald P. Bellisario and Don McGill, follows Naval Criminal Investigative Service agents working crimes involving Navy and Marine Corps personnel. The Season 24 cast is led by Gary Cole, with Sean Murray, Wilmer Valderrama, Katrina Law, Brian Dietzen, Diona Reasonover and Rocky Carroll. It airs Tuesdays at 8 p.m. ET/PT on CBS.
The season premiered October 6, 2026 and drew 6.45 million viewers (Nielsen Live+Same Day) — the night’s No. 1 program, up 21% from its year-ago premiere and the show’s largest audience since May 2024. The premiere night brought franchise veteran Michael Weatherly back as Anthony DiNozzo Jr., with Mark Harmon appearing in the night’s NCIS: Origins; across the three NCIS series, CBS’s Tuesday averaged 5.49 million viewers, up 39–40% year over year.
No 25th-season announcement had been made in the sources checked as of October 22, 2026.
The Facts
Network: CBS · Tuesdays, 8 p.m. ET/PT
Season: Season 24 · premiered October 6, 2026
Cast: Gary Cole, Sean Murray, Wilmer Valderrama, Katrina Law, Brian Dietzen
The number: 6.45 million viewers, season premiere (Nielsen Live+Same Day)
Status: Season 25 not yet announced
Sources: Nielsen Live+Same Day (Big Data + Panel) premiere figures published by CBS (Paramount Press Express, October 15, 2026), ABC and NBC for the fall 2026 premieres; TheWrap and TVLine ratings roundups. Read October 22, 2026. Photo credit on the image above.
Comments
From the readers of the Daily.