A thoughtful, intense presence on television in America and his native United Kingdom, David McCallum was a pop culture sensation in the mid-1960s as the suave spy, Illya Kuryakin, on "The Man from U. N.C.L.E" (CBS, 1965-68) and later as the avuncular Donald "Ducky" Mallard on "NCIS: Naval Criminal Service Investigation" (CBS, 2003). The Scottish-born McCallum worked his way up the ranks in British film and television before bursting onto the American scene with "U.N.C.L.E." His cool charm and blonde good looks made him an immediate TV idol, but failed to translate into stardom after the show left the air. McCallum settled into a steady diet of TV appearances on both sides of the Atlantic, frequently essaying mellowed professorial types or pensive government figures, before scoring his late-inning smash with "NCIS." The rare performer with two major hits to his credit, McCallum's image and talent ensured his fame for generations of TV fans.