Abby Sciuto is a fictional character from the television series NCIS, which stands for Naval Criminal Investigative Service. She is portrayed by actress Pauley Perrette and is known for her unique style, characterized by her gothic appearance, including dark clothing and pigtails. Abby works as a forensic scientist, specializing in analyzing evidence and using advanced technology to solve crimes. In the series, Abby is recognized for her intelligence, enthusiasm, and strong moral compass. She often collaborates with other main characters, such as Leroy Jethro Gibbs and Tony DiNozzo, to help uncover the truth behind various criminal cases involving the U.S. Navy and Marine Corps.