Adam Campbell as the younger Ducky Mallard. Cliff Lipson/CBS Share on Facebook Share on X Share to Flipboard Send an Email Show additional share options Share on LinkedIn Share on Pinterest Share on Reddit Share on Tumblr Share on Whats App Print the Article Post a Comment Logo text CBS' NCIS: Origins will bring another character from its parent series into the fold in its forthcoming second season. Adam Campbell will reprise his NCIS guest role as the younger version of Dr. Donald "Ducky" Mallard in an episode of the 1990s-set Origins.