Ever since the show premiered in 2003, Pauley played "Abby Sciuto", who is a forensics expert and an IT-specialist. "Abby" was regarded particularly eccentric and her methods tend to be rather unconventional. Her trademark was the gloomy Gothic style.. Unfortunately, Pauley left the show at the end of season 15!
This exit from the show was truly heartbreaking for many fans of NCIS. Pauley Perrette has portrayed the forensic scientist "Abigail 'Abby' Sciuto" for 14 seasons, but the fifteenth season was her last on the popular show. A hard blow for all those who loved "Abby"!