Before actor David McCallum portrayed the avuncular medical examiner Donald “Ducky” Mallard in the TV series “NCIS,” he starred as the intense and brooding Russian spy, Ilya Kuryakin, in “The Man from U.N.C.L.E.” Host Marco Werman remembers McCallum, who died on Monday at age 90, and celebrates the cultural milestone of McCallum’s 1960s series, which brought together US and Soviet agents to fight international crime.