Fiona Shaw (born Fiona Mary Wilson, 10 July 1958) is an Irish film and theatre actress. She did extensive work with the Royal Shakespeare Company and the National Theatre, as well as in film and television. In 2020, she was listed at No. 29 on The Irish Times list of Ireland's greatest film actors. She was made an Honorary Commander of the Order of the British Empire (CBE) by Queen Elizabeth II in 2001.
She won both the 1990 and 1994 Laurence Olivier Award for Best Actress for roles in the plays Electra, As You Like It, The Good Person of Szechwan (1990), and Machinal (1994) and received a further three Olivier Award nominations for her roles in Mephisto (1986), Hedda Gabler (1992), and Happy Days (2008). She made her Broadway debut playing the title role in Medea (2002), for which she earned a nomination for the Tony Award for Best Actress in a Play. She returned to Broadway in the Colm Tóibín play The Testament of Mary (2013).
In film, she played Petunia Dursley in the Harry Potter film series (2001–2010). Other notable film roles include My Left Foot (1989), Persuasion (1995), Jane Eyre (1996), The Tree of Life (2011), Colette (2018), Ammonite (2020), and Enola Holmes (2020).
Her television roles include Hedda Hopper in the HBO film RKO 281 (1999) and Marnie Stonebrook in the HBO series True Blood (2011). She played Carolyn Martens in the BBC series Killing Eve (2018–22), for which she received the 2019 BAFTA TV Award for Best Supporting Actress and two Primetime Emmy Award nominations. For her role as a counsellor in Fleabag (2019), she received a Primetime Emmy Award for Outstanding Guest Actress in a Comedy Series nomination. She starred in the BBC One series Baptiste (2021) and the Disney+ series Andor (2022).
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Known For

Echo Valley
Jessie Oliver
2025

Hot Milk
Rose Papastergiadis
2025

Park Avenue
Kit
2025

That Christmas
Ms. Trapper (voice)
2024

IF
Grandmother
2024

Andor: A Disney+ Day Special Look
Maarva Andor (archive footage) (uncredited)
2022

Colette
Sido
2018

The Hippopotamus
Anne Logan
2017

The White King
Kathrin Fitz
2016

Pixels
Prime Minister (uncredited)
2015

Great Poets: In Their Own Words
Self
2014

Muse of Fire
Self
2013

The English Teacher
Narrator
2013

The Tree of Life
Grandmother
2011

Harry Potter and the Deathly Hallows: Part 1
Petunia Dursley
2010

National Theatre Live: London Assurance
Lady Gay Spanker
2010

Dorian Gray
Agatha
2009

Mitchell And Kenyon In Ireland
Narrator (voice)
2007

Harry Potter and the Order of the Phoenix
Petunia Dursley
2007

Fracture
Judge Robinson
2007

Catch and Release
Mrs. Ellen Douglas
2006

The Black Dahlia
Ramona Linscott
2006
Ebb and Flo
Narrator
2005

Harry Potter and the Prisoner of Azkaban
Petunia Dursley
2004

Harry Potter and the Chamber of Secrets
Petunia Dursley
2002

Harry Potter and the Philosopher's Stone
Petunia Dursley
2001

The Triumph of Love
Leontine
2001

Mind Games
Frances O'Neil
2001

The Last September
Marda Norton
2000

RKO 281
Hedda Hopper
2000

The Avengers
Father
1998

The Butcher Boy
Mrs. Nugent
1998

Anna Karenina
Lydia
1997

Richard II
Richard II
1997

Jane Eyre
Mrs. Reed
1996

Persuasion
Mrs. Croft
1995

Undercover Blues
Novacek
1993

Super Mario Bros.
Lena
1993

London Kills Me
Headley
1991

Mountains of the Moon
Isabel
1990
Love Song
Young Deirdre Walters
1985

Monstrous Beauty
Aphra Ben

Maria's Child
Pauline
1993

Hedda Gabler
Hedda Gabler
1993

3 Men and a Little Lady
Miss Lomax
1990

My Left Foot: The Story of Christy Brown
Dr. Eileen Cole
1989

Fireworks for Elspeth
Elspeth
1983
The Rising: 1916
Countess Markievicz

Andor
Maarva Andor · (4 episodes)
2022

Bad Sisters
Angelica Collins · (7 episodes)
2022

Russia vs. the World
Narrator
2021

Ammonite
Elizabeth Philpot
2020

Kindred
Margaret
2020

Enola Holmes
Miss Harrison
2020

The Christmas Letter
Ms. Broom
2019

Out of Innocence
Catherine Flynn
2019

Baptiste
Emma Chambers · (6 episodes)
2019

Mrs Wilson
Coleman · (3 episodes)
2018

Lizzie
Abby Borden
2018

Killing Eve
Carolyn Martens · (32 episodes)
2018

Emerald City
Mombi · (1 episode)
2017

Channel Zero
Marla Painter · (6 episodes)
2016

Fleabag
Counsellor · (1 episode)
2016

Maigret Sets A Trap
曼森夫人
2016

Maigret
Madame Moncin · (1 episode)
2016

Penn Zero: Part-Time Hero
Hedwin (voice) · (1 episode)
2014

Inside No. 9
Jean · (1 episode)
2014

True Detective
Rose Aguineau · (6 episodes)
2014

Shakespeare's Sonnets
2012

We Believed
Emilie Ashurst
2010

Creating the World of Harry Potter
Self - 'Petunia Dursley' · (8 episodes)
2009

Simon Schama's John Donne
(1 episode)
2009

True Blood
Marnie Stonebrook · (12 episodes)
2008

Empire
Fulvia · (6 episodes)
2005

Agatha Christie's Marple
Miss Katherine Greenshaw · (1 episode)
2004

Great Britons
Herself · (1 episode)
2002

Gormenghast
Irma Prunesquallor · (4 episodes)
2000

Titanic Town
Sue, TV Interviewer (Uncredited Cameo)
1998

Trial & Retribution
(2 episodes)
1997
Ruby
Self · (1 episode)
1997

The Waste Land
Herself
1995

Shakespeare: The Animated Tales
Viola (voice) · (1 episode)
1992

Performance
Hedda Gabler · (1 episode)
1991

For the Greater Good
Gillian Savage · (3 episodes)
1991

Sacred Hearts
Sister Felicity
1985
Ladies First
The Stalemate
Scotch Verdict

The Last Machine
(5 episodes)
1995

Performance
Richard II · (1 episode)
1991

The Hand of Stalin
Self - Narrator (voice) · (1 episode)
1990

The Simpsons
Mrs. McCormick (voice) · (1 episode)
1989
Theatre Night
(1 episode)
1985

Sherlock Holmes
Miss Morrison · (1 episode)
1984

Tony Awards
Self - Nominee · (1 episode)
1956

Ebb and Flo
Narrator · (26 episodes)