Abby Sciuto is a recurring character.
Abigail `` Abby '' Sciuto [ ˈʃuːtoʊ ] is a fictional character from the NCIS television series on CBS Television , and is portrayed by Pauley Perrette . In a season 10 episode entitled `` Hit and Run '' , a young Abby was played by Brighton Sharbino in flashbacks . The role has made Perrette one of the most popular actresses on U.S. primetime television in 2011 , according to Q Score .