Who talks about this person
David McCallum
David McCallum on learning about pathology to play "Dr. Donald Mallard" aka "Ducky'" on NCIS (and visiting his friend, Robert Mueller, former director of the F.B.I.)
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David McCallum on learning about pathology to play "Dr. Donald Mallard" aka "Ducky'" on NCIS (and visiting his friend, Robert Mueller, former director of the F.B.I.)