When the news broke that David McCallum, the beloved actor who played Dr. Donald “Ducky” Mallard on NCIS, had passed away, longtime co-star Mark Harmon was reportedly heartbroken by the loss of a colleague and friend he had worked alongside for nearly twenty years.
Harmon reflected on McCallum not only as an extraordinary actor but also as a kind, thoughtful, and generous person who brought warmth and wisdom to the set each day. According to those close to the production, McCallum’s presence helped shape the spirit of NCIS, while his quiet humor and professionalism earned the respect and admiration of everyone around him.
Although his passing leaves a deep void, Harmon shared that McCallum’s legacy will live on through the show, the unforgettable characters he created, and the countless memories cherished by his castmates and fans.