NCIS Season 21 Cast
Currently Appearing on NCIS

These actors are part of the main cast during the most recent season, with no exits announced so far.

Gary Cole as Supervisory Special Agent Alden Parker

Alden Parker had one of Season 22’s most harrowing arcs: his father was killed in the shocking finale, pushing him toward “vengeful rage.” He’s been part of the show since Season 19.

NCIS Season 21 Cast

Sean Murray as Special Agent Timothy McGee

NCIS’s long-running tech genius and second-in-command has been a franchise staple since Season 1.

Photos: CBS Posted to: Brian Dietzen, CBS, Diona Reasonover, EG, Emily Wickersham, evergreen, Gary Cole, Katrina Law, Longform, Maria Bello, Mark Harmon, NCIS, Rocky Carroll, Sean Murray, Slideshow, Television, Wilmer Valderrama