Will there be NCIS Season 21 or not? Let’s find out the details you need to know. While solving extreme criminal cases involving members of the Navy, Marine Corps, and their families, a select group of Naval Criminal Investigations officers follow the crime drama series NCIS.
Leroy Jethro Gibbs, the hot-tempered ex-Marine, commanding an elite squad of agents at the start of the 2003 program, was played by Mark Harmon.
Unfortunately, Harmon left the program after the 19th season when his character retired to Alaska. Some thought the show should have ended after Harmon’s departure, but with a 21st season in the works, it is still doing something right for its fan base.
NCIS Season 21 Cast and Characters.

The Main Case Response cast of the Naval Criminal Investigative Service are a fictional group of special officers who are the focus of the show’s basic concept.
It is anticipated that the previous season’s ensemble will return. Flag Harmons, Sasha Alexander, Pauley Perrette, Sean Murray, Michael Weather, Cote de Pablo, Rocky Carroll, Lauren Holly, David McCallum, Brian Dietzen, Duane Henry, Maria Bello, Diona Reasonover, Emily Wickersham, Wilmer Valderrama, Jennifer Esposito, Katrina LawAnd Gary Cole including those mentioned. In addition, the following roles are expected to be played by:
Leon Vance will be played yet again by Rocky Carroll.
Donald Mallard played by David McCallum
Brian Dietzen will play Jimmy Palmer.
As Jessica Knight, Katrina Law
As Cassie Hines, Dionna Reasonover will return.
Tim McGee’s agent, Sean Murray
Agent Nick Torres, played by Wilmer Valderrama
Actor Gary Cole will play Agent Alden Parker.
Where am I able to watch NCIS Season 21?

NCIS Season 21 is currently streaming CBSand viewers can catch up by subscribing to CBS All Access to access the show online.
Additionally, episodes are available on Google Play Movies, Amazon Prime Video, and iTunes. With a membership, NCIS can even be watched on CBS All Access and Netflix.
When will NCIS Season 21 be available?

NCIS Season 21 of the series will be released in 2023. Eighteen episodes will complete the season, incorporating new and familiar characters. Leroy Jethro Gibbs, played by Mark Harmon, will guide an army of special agents in their questions this season.
What is the plot of NCIS Season 21?

The upcoming season of the venerable CBS police thriller series NCIS is Season 21. Until recently, little was known about what to expect from the upcoming season.
The season finale of NCIS Season 20 has fans on edge; they cannot wait to see what’s in the new season.
Since NCIS often brings back characters from previous seasons, some recognizable faces can be expected.
The program will also continue to dig deeply into the backgrounds and connections of the characters while exploring the rich past of the NCIS team.