Fiona Dourif (born October 30, 1981) is an American actress and producer. She is known for her role as Bart Curlish in BBC America's Dirk Gently's Holistic Detective Agency and as the young Diane Jones in When We Rise. She has appeared in Showtime's Shameless and in a recurring role on NBC's The Blacklist. She played Nica Pierce in the 2013 horror film Curse of Chucky and its 2017 follow-up Cult of Chucky, which are part of the Child's Play franchise (1988 - Present); she appears in these films alongside her father, Brad Dourif, who portrays the series' main antagonist, Chucky. In 2018, she was cast as Good Leader Tavis in the USA Network series The Purge. She portrays The Rat Woman in the 2020 mini-series The Stand.