A heartfelt tribute to David McCallum, a surprise return from Michael Weatherly, and why Mark Harmon was missing from NCIS.

David McCallum's health did not contribute to his decline on NCIS, but limited his role as Ducky Mallard. The star actor ...

He was convinced that David McCallum was the perfect man for the job and was willing to cancel the entire project if CBS didn't agree. James Whitmore, a former NCIS director, recalled the tense ...

Actor David McCallum, famed for his roles in "The Man from U.N.C.L.E." and CBS's "NCIS" joins Tanya Rivero to discuss his debut novel, "Once a Crooked Man." ...

who plays Clayton Reeves on "NCIS," sent love to fans and co-star Pauley Perrette after the show's May 8 episode. David Keith McCallum, Jr. (born 19 September 1933) is a Scottish actor and musician.