David McCallum, Beloved 'NCIS' and 'The Man from U.N.C.L.E' Actor, Passes Away at 90

David McCallum, the British actor known for his roles in "The Man from U.N.C.L.E." and "NCIS," has passed away at the age of 90. McCallum's portrayal of secret agent Illya Kuryakin in "The Man from U.N.C.L.E." made him a TV star in the 1960s, while his role as a medical examiner on "NCIS" endeared him to audiences in recent years. He also had notable roles in "Colditz," "The Invisible Man," and "Sapphire & Steel." McCallum's family and colleagues remember him as a gifted actor and a beloved figure in the entertainment industry.