Abby Sciuto is a character from the Police procedural drama television series, NCIS. It is portrayed by American actress, Pauley Perrette. The character was first seen in the episodes, Ice Queen. Abby works as a forensic scientist in Washington Naval Yard's Naval Criminal Investigative Service division. She is characterized by Show more... her Goth fashion style and her expertise in DNA analysis, digital forensics and ballistics.