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Elaine Cassidy

Acting Born Dec 31, 1979 Kilcoole, Wicklow, Ireland 41 credits

Biography

Elaine Cassidy is an Irish actress born on December 31, 1979. She is known for her work in several film and television projects. These include Harper's Island, a television series, Felicia's Journey, a film, Disco Pigs, a film, and The Others, a film.

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Known for

Film

The Last Kingdom: Seven Kings Must Die

as Queen Eadgifu
Film

The Wonder

as Rosaleen O'Donnell

A Discovery of Witches

as Louisa de Clermont
Film

The Program

as Betsy Andreu
Film

The Loft

as Ellie Seacord

Harper's Island

as Abby Mills
Film

New York, I Love You

as Lucy Honeychurch

Catwalk

as Lucy Honeychurch
Film

Quarantine

as Maud Lilly
Film

The Others

as Lydia

The Cramp Twins

as Agnes Cluny

Mission Top Secret

1993

Frequent co-stars

Nicole Kidman 1 shared title
Alakina Mann 1 shared title
James Bentley 1 shared title
Fionnula Flanagan 1 shared title
Christopher Eccleston 1 shared title
Eric Sykes 1 shared title
Keith Allen 1 shared title
Renée Asherson 1 shared title
Michelle Fairley 1 shared title
Gordon Reid 1 shared title

Career timeline

Salvable
Belgravia: The Next ChapterSanctuary: A Witch's TaleThe Colour of My Room
The Last Kingdom: Seven Kings Must Die
The Wonder
Intruder
The Dark Tower
A Discovery of WitchesStrangeways Here We Come
Acceptable Risk
Mum's ListProperty of the StateNational Theatre Live: Les Liaisons Dangereuses
No OffenceThe Program
The Loft
The ParadiseThe ParadiseHannah Cohen's Holy Communion
Just Henry
Harper's Island
A Room with a ViewLittle White Lie
And When Did You Last See Your Father?A Room with a View
The Truth
FingersmithUncle AdolfThe Ghost Squad
Watermelon
The Bay of Love and Sorrows
The OthersThe Lost WorldThe Lost WorldDisco Pigs
Felicia's Journey
The Sun, The Moon and The Stars
Mission Top Secret

Full filmography

  • Salvable (2025) as Elaine
  • Belgravia: The Next Chapter (2024) as Davison
  • Sanctuary: A Witch's Tale (2024) as Sarah Fenn
  • The Colour of My Room (2024)
  • The Last Kingdom: Seven Kings Must Die (2023) as Queen Eadgifu
  • The Wonder (2022) as Rosaleen O'Donnell
  • Intruder (2021) as Rebecca Hickey
  • The Dark Tower (2020) as Gabrielle Deschain
  • A Discovery of Witches (2018) as Louisa de Clermont
  • Strangeways Here We Come (2018) as Steph Nolan
  • Acceptable Risk (2017) as Sarah Manning
  • Mum's List (2016) as Rachel
  • Property of the State (2016) as Margaret
  • National Theatre Live: Les Liaisons Dangereuses (2016) as Madame de Tourvel
  • No Offence (2015) as Dinah Kowalska
  • The Program (2015) as Betsy Andreu
  • The Loft (2014) as Ellie Seacord
  • The Paradise (2012) as Katherine Weston
  • The Paradise (2012) as Katherine Glendenning
  • Hannah Cohen's Holy Communion (2012) as Rachel Cohen
  • Just Henry (2011) as Maureene
  • Harper's Island (2009) as Abby Mills
  • A Room with a View (2008) as Lucy Honeychurch
  • Little White Lie (2008) as Annie Mulcahy
  • And When Did You Last See Your Father? (2007) as Sandra
  • A Room with a View (2007) as Lucy Honeychurch
  • The Truth (2006) as Candy
  • Fingersmith (2005) as Maud Lilly
  • Uncle Adolf (2005) as Geli Raubal
  • The Ghost Squad (2005) as Amy Harris
  • Watermelon (2003) as Anna Ryan
  • The Bay of Love and Sorrows (2002) as Carrie Matchett
  • The Others (2001) as Lydia
  • The Lost World (2001) as Agnes Cluny
  • The Lost World (2001) as Agnes Cluny
  • Disco Pigs (2001) as Runt / Sinead
  • Felicia's Journey (1999) as Felicia
  • The Sun, The Moon and The Stars (1996) as Shelley
  • Mission Top Secret (1993)
  • The Reformation of Sister Edith as Mathilde
  • The Night House as Jenny