David Keith McCallum was a Scottish actor and musician. He gained wide recognition in the 1960s for playing secret agent Illya Kuryakin in the television series The Man from U.N.C.L.E.

Beginning in 2003, McCallum gained renewed international popularity for his role as NCIS medical examiner Dr. Donald “Ducky” Mallard in the American television series NCIS.

Jason McCallum’s cause of death: What happened to David McCallum’s son?

McCallum’s adopted son died from an accidental drug overdose in 1989, But today David McCallum also passed away at the age of 90. McCallum died at the NewYork-Presbyterian Hospital in New York City on 25 September 2023, a week after his 90th birthday.

The star actor became assistant stage manager of the Glyndebourne Opera Company. He began his acting career doing boy voices for BBC Radio in 1947 and taking bit parts in British films from the late 1950s. McCallum starred in the CBS television series NCIS as Dr. Donald “Ducky” Mallard, the team’s chief medical examiner and one of the show’s most popular characters.