Abby Sciuto is a character from a television show .
Like Jethro Gibbs , Anthony DiNozzo , and Dr. Donald Mallard , Abby was first introduced in the episodes `` Ice Queen `` and `` Meltdown `` of the television show JAG -LRB- which together served as the backdoor pilot for NCIS -RRB- , and has appeared in every episode of NCIS , in addition to being featured on the show 's spin-offs , NCIS : Los Angeles -LRB- two episodes -RRB- and NCIS : New Orleans -LRB- two episodes -RRB- .
Abby Sciuto