NCIS is undergoing changes, with Mark Harmon’s departure and concerns about Wilmer Valderrama’s character.

Rumors circulated about Rocky Carroll leaving, but he’s still part of the show as Director Vance. Timothy McGee’s role sparked speculation about him potentially succeeding Vance.

Pauley Perrette’s return is uncertain due to her retirement and health challenges. NCIS’s 20th season premiered with the lowest ratings, possibly affected by Harmon’s exit.

Fans are encouraged to continue supporting the show amid uncertainties about its future.