Let's make this birthday one to remember.

91 years old (Born on September 19, 1933)

Happy birthday, David McCallum! From your suave spy days as Illya Kuryakin in "The Man from U.N.C.L.E." to stealing every scene as Dr. Donald "Ducky" Mallard on "NCIS," you've left an incredible mark while effortlessly proving that bowties and lab coats never get old. Your charm, wit, and ability to dissect complicated mysteries—and cadavers—with elegance continue to captivate audiences across generations.

Whether saving the world alongside Napoleon Solo or unraveling forensic puzzles with Gibbs' team, you've shown us true style has no expiration date. Cheers to another fantastic year of uncovering secrets—both on screen and off (though perhaps fewer autopsy tables involved). Happy unforgettable birthday!