Inside the Friendship of Mark Harmon and David McCallum

A Character That Left a Mark

McCallum’s portrayal of Dr. Donald “Ducky” Mallard became one of the most recognizable roles in the history of NCIS. His character was admired for intelligence, warmth, and depth, qualities that resonated strongly with audiences.

Through his performance, McCallum helped shape many memorable storylines and contributed to the emotional heart of the show. Viewers connected with both the character and the actor behind it, making him a beloved figure in the series.