Elaine Cassidy

Acting · b. 1979 · Kilcoole, Wicklow, Ireland

Elaine Cassidy (born December 31, 1979) is an Irish actress best known for Harper's Island, Felicia's Journey, Disco Pigs and The Others.

Known for

6.9

Harper's Island

2009 · Series · Abby Mills

6.6

The Wonder

2022 · Rosaleen O'Donnell

7.6

The Others

2001 · Lydia

6.3

Felicia's Journey

1999 · Felicia

5.7

Disco Pigs

2001 · Runt / Sinead

7.5

No Offence

2015 · Series · Dinah Kowalska

6.8

Mum's List

2016 · Rachel

7.2

The Last Kingdom: Seven Kings Must Die

2023 · Queen Eadgifu

6.7

Sanctuary: A Witch's Tale

2024 · Series · Sarah Fenn

6.4

The Program

2015 · Betsy Andreu

6.1

The Lost World

2001 · Agnes Cluny

6.5

And When Did You Last See Your Father?

2007 · Sandra

All acting credits38

6.2

Salvable

2025 · Elaine

7.4

Belgravia: The Next Chapter

2024 · Series · Davison

6.7

Sanctuary: A Witch's Tale

2024 · Series · Sarah Fenn

The Colour of My Room

2024

7.2

The Last Kingdom: Seven Kings Must Die

2023 · Queen Eadgifu

6.6

The Wonder

2022 · Rosaleen O'Donnell

6.6

Intruder

2021 · Series · Rebecca Hickey

The Dark Tower

4.0

The Dark Tower

2020 · Gabrielle Deschain

7.8

A Discovery of Witches

2018 · Series · Louisa de Clermont

6.3

Strangeways Here We Come

2018 · Steph Nolan

6.6

Acceptable Risk

2017 · Series · Sarah Manning

6.8

Mum's List

2016 · Rachel

6.0

National Theatre Live: Les Liaisons Dangereuses

2016 · Madame de Tourvel

7.3

Property of the State

2016 · Margaret

7.5

No Offence

2015 · Series · Dinah Kowalska

6.4

The Program

2015 · Betsy Andreu

6.4

The Loft

2014 · Ellie Seacord

7.3

The Paradise

2012 · Series · Katherine Weston / Katherine Glendenning

In development

The Reformation of Sister Edith

Mathilde

The Night House

Jenny