Modern audiences will recognize McCallum as Donald “Ducky” Mallard on"NCIS.
“The actor is survived by his wife,model Katherine Carpenter, whom McCallum married in 1967.
McCallum had three children with Ireland; Paul, Val, and Jason, who sadly died in 1989.

The “NCIS” stalwart is also survived by his two children with Carpenter, Sophie and Peter.
David was a gifted actor and author, and beloved by many around the world.
McCallum joined “The Man From U.N.C.L.E.”

- McCallum played Illya Kuryakin, a Russian sidekick to Robert Vaughn’s super agent, Napoleon Solo.
The Fifteen Years Later Affair.”
McCallum will be sorely missed by friends, family, and fans.