NCIS season 23
The twenty-third season of NCIS was announced on February 20, 2025 by CBS and premiered on October 14, 2025. In January 2026, the series was renewed for a 24th season.
Premise
NCIS revolves around a fictional team of special agents from the Naval Criminal Investigative Service, which conducts criminal investigations involving the United States Navy and Marine Corps. Based at the Washington Navy Yard in Washington, D.C., the NCIS team is led by Supervisory Special Agent Alden Parker, an ex-FBI Special Agent and a skilled investigator.Cast and characters
Main
- Sean Murray as Timothy McGee, NCIS Senior Special Agent, Second in Command of MCRT
- Wilmer Valderrama as Nick Torres, NCIS Special Agent
- Katrina Law as Jessica Knight, NCIS Special Agent
- Brian Dietzen as Dr. Jimmy Palmer, Chief Medical Examiner for NCIS
- Diona Reasonover as Kasie Hines, Forensic Specialist for NCIS
- Rocky Carroll as Leon Vance, NCIS Director
- Gary Cole as Alden Parker, NCIS Supervisory Special Agent of the Major Case Response Team assigned to Washington's Navy Yard and former FBI Special Agent
Recurring cast
- Rebecca De Mornay as Carla Marino, the boss of the Kansas City Mob.
- Zane Holtz as Dale Sawyer, NCIS Special Agent
- Victoria Kelleher as Barbara Dunsley, NCIS Accountant
- Roma Maffia as Vera Strickland, retired NCIS Special Agent
Notable guests
- Nancy Travis as Harriet Parker, U.S. Navy Vice Admiral and Parker's sister
- Emily Wickersham as Eleanor "Ellie" Bishop, former NCIS Special Agent
Crossover
- Bobby Moynihan as Woodrow "Woody" Browne, retired NIS forensic analyst
- Ely Henry as Philip Elertson, retired NIS forensic chemist
Episodes
Production
After the season renewal, CBS revealed that the series would be returning to its original timeslot on Tuesdays at 8pm, followed by NCIS: Origins and NCIS: Sydney at 9 and 10 p.m. respectively.On September 4, it was announced a special crossover with the Origins spinoff celebrating U.S. Veterans on November 11, with a case that would span across decades. For this event, both series inverted their programming schedule.
Also, Mark Harmon, Roma Maffia and Muse Watson reprised their roles as Leroy Jethro Gibbs, Vera Strickland and Mike Franks for the crossover.