Scottish actor David McCallum, known for his roles in NCIS and The Man From U.N.C.L.E., has passed away at the age of 88. He died peacefully of natural causes surrounded by his family at New York Presbyterian Hospital. Known for his role as Dr. Donald 'Ducky' Mallard on NCIS, McCallum was beloved by fans and colleagues alike. CBS, the network that airs NCIS, released a statement honoring McCallum's legacy, and the show's executive producers praised him as a scholar, gentleman, and consummate professional. McCallum leaves behind a lasting impact on the entertainment industry.