David McCallum, star of the NBC-TV series "The Invisible Man," is shown during an interview with Jay Sharbutt at NBC studios in New York, Aug. 28, 1975.

Video. David McCallum, star of 'The Man From U.N.C.L.E.' dies aged 90

The actor, originally from Scotland, achieved fame primarily for his role in the 1960s spy TV series and, more recently, for his role as Dr. Donald "Ducky" Mallard in "NCIS".