NCIS's Ducky, David McCallum, Passed Away at Age 90

'Ducky' from 'NCIS,' played by David McCallum, has passed away. He was ninety years old. The actor started his TV career in the 1950s and became well-known for his part in the British series "The Man From U.N.C.L.E." in 1964. After that, David became the most enduring member of the original cast of "NCIS," starring on the show for twenty seasons.