Celebrity / TV
David McCallum has been playing Ducky on NCIS for more than two decades. Before joining NCIS, the actor appeared in hit TV shows such as The Man from U.N.C.L.E. and Sapphire & Steel. McCallum had the funniest response after meeting Mark Harmon for the first time. David McCallum as Ducky on ‘NCIS’ McCallum first joined …