NCIS New Cast and Returning Favorites!
Season 21 of “NCIS,” which premiered in February 2024, features a mix of long-standing characters and new faces.
Sean Murray continues his role as Timothy McGee, and Wilmer Valderrama is back as Nick Torres. The season is also notable for the absence of David McCallum, who passed away in 2023 (The Direct) (NCIS News).