Fiona Christianne Dourif (born October 30, 1981) is an American actress and producer. She is best known for portraying Dr. Cassie McKay in the HBO Max medical drama series The Pitt (2025–present). For that role, she was nominated for the Primetime Emmy Award for Outstanding Supporting Actress in a Drama Series and won, alongside the cast, an Actor's Award for Outstanding Performance by an Ensemble in a Drama Series.
As an actress, Dourif has worked with directors including Christopher Nolan (Tenet), Paul Thomas Anderson (The Master), and Gus Van Sant (When We Rise).
Dourif starred as Nica Pierce in the Child's Play franchise (2013–2024), Bart Curlish in the BBC America science fiction series Dirk Gently's Holistic Detective Agency (2016–2017), and as Diane Jones in the ABC miniseries When We Rise (2017). She played recurring roles in the HBO fantasy drama series True Blood (2011), the NBC crime thriller series The Blacklist (2018–2021), the USA Network action horror series The Purge (2018), and the CBS All Access miniseries The Stand (2020).
Dourif has appeared in films such as Garden Party (2008), Fear Clinic (2014), Blood Is Blood (2016), The Shuroo Process (2021), Don't Look at the Demon (2022), and Unsinkable (2024).
Early life Dourif was born in Woodstock, New York, the daughter of actor Brad Dourif and Jonina (Joni) Dourif. Her mother worked as a professional psychic and was a practitioner of remote viewing. Dourif said she was taught remote viewing from about age 12 to 18, and was raised among practitioners who were preparing for the end of the world, the date of which kept being pushed back. Dourif has a single tattoo, of the emblem of her mother's remote viewing business. Dourif's stepfather was Edward Dames, a former U.S. Army officer who served in the Stargate Project.
After college, Dourif became a segment producer for documentaries on History and TLC. She began acting at the age of 23, supplementing her acting career with waitressing and bartending jobs for 14 years before she was able to support herself as an actress.
Dourif has a sister, Kristina Dourif.
Career In 2005, Dourif made her professional acting debut as Chez Ami Whore in the HBO period drama series Deadwood. The following year, she was cast as Alice in the television miniseries Thief. The same year, Dourif made her debut film appearance in the drama Little Chenier.
In 2007, Dourif appeared in the off-Broadway play Some Americans Abroad at Second Stage Theater. Later, she was cast in the short film The Lucky One. In 2008, Dourif portrayed Becky in the indie drama film Garden Party and Lisa in Frank the Rat. The same year, Dourif guest starred in the NBC police procedural series Law & Order: Special Victims Unit as Detective Nikki Breslin.
In 2009, Dourif was cast in a small role in the film The Messenger and had a guest role in the HBO comedy series Bored to Death. The following year, she starred in the indie film Mafiosa and the television film After the Fall. Dourif subsequently portrayed Penny in Letters from the Big Man before having a recurring role as Casey in the HBO fantasy drama series True Blood and a guest appearance in the Lifetime police drama series The Protector.
In 2012, Dourif starred in the short film This is Caroline and appeared in Paul Thomas Anderson's psychological drama The Master.
In 2013, Dourif portrayed Nica Pierce in the slasher film Curse of Chucky, the sixth installment in the Child's Play franchise in which her father, Brad Dourif, had starred as Chucky. The film was a critical success and became a cult hit. Dourif reprised her role as Nica Pierce in the 2017 horror film Cult of Chucky and in the 2021 television series continuation Chucky. She also portrayed the on-screen version of Charles Lee Ray in flashbacks, a role her father played in the original 1988 film and returned to voice for the series.
In 2014, she was cast in the indie films Gutshot Straight, Dangerous Words from the Fearless, Precious Mettle, and Fear Clinic. She also starred as Brie in the 2016 thriller film Blood is Blood.
From 2016 to 2017, Dourif played the "holistic assassin" Bart Curlish in the BBC America science fiction comedy series Dirk Gently's Holistic Detective Agency. The series ran for two seasons. Also in 2017, she portrayed the younger version of the character played by Rachel Griffiths, named Diane Jones, in the ABC docudrama miniseries When We Rise.
From 2018 to 2021, Dourif portrayed Jennifer Reddington, the long lost daughter of main character Raymond Reddington, in the NBC drama thriller series The Blacklist. She also had a recurring role in the USA Network action horror series The Purge as Good Leader Tavis, a zealous cult leader.
In 2020, Dourif was cast as the villainous Rat Woman in the miniseries adaptation of Stephen King's novel The Stand.
In 2025, Dourif was cast as a series regular in the medical drama series The Pitt as Dr. Cassie McKay.
In April 2026, it was announced that Dourif would join the cast of the Franz and Fiala film Head Full of Ghosts.
Filmography Film YearTitleRoleNotes2006Little ChenierJo Jo2007 The Lucky OneSusanShort film2008Garden PartyBeckyFrank the RatLisa2009 The MessengerReturning Soldier's Wife2011Letters from the Big ManPenny2012This is CarolineFiona (voice)Short filmCold LivingMoiraShort film The MasterDancer2013Curse of ChuckyNica Pierce2014Gutshot StraightGinaDangerous Words from the FearlessRuthPrecious MettleJudy2015Fear ClinicSara2016Her Last WillIona CottonBlood Is BloodBrieMafiosaSamArbor DemonDana2017SafeBrendaCult of ChuckyNica Pierce / Chucky2020TenetWheeler 2021 The Shuroo ProcessParker Schafer2022Don't Look at the DemonJules2023On FireSarah Laughlin2024UnsinkableAlaine RicardPsychonaut SamanthaTBATBA Filming
Television YearTitleRoleNotes2005DeadwoodChez Ami WhoreRecurring role; 3 episodes (season 2)2006ThiefAliceMiniseries; 4 episodes2008Law & Order: Special Victims UnitDetective Nikki BreslinEpisode: "Swing"2009Bored to DeathLisa KleinEpisode: "Stockholm Syndrome"2010After the FallAnnie TolgenTelevision film2011True BloodCaseyRecurring role; 8 episodes (season 4) The ProtectorTamara O'NeilEpisode: "Safe"2015Rizzoli & IslesHelen Barnes' DaughterEpisode: "Face Value" The PlayerChloe SteeleEpisode: "L.A. Takedown"ManhattanJean TatlockEpisodes: "The Threshold" (voice only) and "Overlord"2016–2017Dirk Gently's Holistic Detective AgencyBartine "Bart" CurlishMain role; 13 episodes2016Still SingleClementine Callaghan Television film2017When We RiseYoung Diane JonesMiniseries; 4 episodes2018ShamelessTabitha YouensEpisode: "Church of Gay Jesus"2018–2019, 2021 The BlacklistJennifer ReddingtonRecurring role; 10 episodes (seasons 5-6, 8)2018 The PurgeGood Leader TavisRecurring role; 5 episodes (season 1)2020UtopiaCara FrostfieldRecurring role; 3 episodesHelstromMother / KtharaEpisode: "Committed" The StandThe Rat WomanMiniseries; 4 episodes2021Red Bird LaneMikkiTelevision film2021–2024ChuckyNica Pierce / Chucky / Charles Lee Ray Recurring role; 12 episodes2025–present The PittDr. Cassie McKayMain role; 30 episodes
Awards and honors Year Award Category Work Result Ref. 2026 Actor Awards Outstanding Performance by an Ensemble in a Drama Series The Pitt 2026 Primetime Emmy Awards Outstanding Supporting Actress in a Drama Series
References
External links