
'NCIS' Emotional Tribute: Michael Weatherly's Surprise Appearance and Mark Harmon's Involvement Explained
Brian Dietzen, who portrayed Dr. Jimmy Palmer on "NCIS," co-wrote the tribute episode for David McCallum's character, Dr. Donald "Ducky" Mallard, who passed away at age 90. The episode features Ducky solving one last case posthumously, a surprise appearance by Michael Weatherly as Special Agent Tony DiNozzo, and a poignant ending that emphasizes the impact of Ducky's legacy on the team.






