Actor David McCallum, who rose to fame in the 1960s series “The Man From U.N.C.L.E.” and later became known for his role as the eccentric medical examiner in “NCIS,” has died at the age of 90.

McCallum passed away on Monday from natural causes while surrounded by his family at New York Presbyterian Hospital, according to a statement from CBS.

“Dvid was a talented actor and author, and beloved by many around the world. He led an incredible life, and his legacy will forever live on through his family and the countless hours of film and television that he leaves behind,” said CBS.

Born in Scotland, McCallum had a successful career appearing in films such as “A Night to Remember,” “The Great Escape,” and “The Greatest Story Ever Told.” However, it was his role in “The Man From U.N.C.L.E.” that made him a household name in the mid-1960s.

The success of the James Bond books and films at the time led to a surge in secret agent-themed shows, and Ian Fleming, the creator of Bond, contributed some ideas to the development of “The Man From U.N.C.L.E.”