The 19th season of NCIS has already undergone quite the overhaul to its cast this year, with series lead Gibbs (played by Mark Harmon) saying his farewell and the introduction of FBI agent Alden Parker (Gary Cole) and Jessica Knight (Katrina Law). However, a number of the CBS series stalwarts have stayed put with the likes of Torres (Wilmer Valderrama) and McGee (Sean Murray) continuing to track down the bad guys. And thanks to a behind the scenes clip from Valderrama, the pair will be reunited with someone who has a long-lasting legacy in NCIS - and close ties to Abby Sciuto (Pauley Perrette).
