Learn about the Marvel star who was strongly considered for the role of Dr. Donald 'Ducky' Mallard in NCIS before David ...
Daily Express US on MSN4d
David McCallum's real reason for quitting NCIS as Ducky Mallard after 17 yearsDavid McCallum played Dr. Donald "Ducky" Mallard on NCIS for nearly 20 years before he considered leaving the show.
David McCallum stepped down from NCIS as Ducky Mallard, feeling his character became redundant. Here's why he made the tough decision.
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