Justine Mitchell

• Acting

Known for: Acting

Justine Mitchell

Justine Mitchell is an Irish actress. She is best known for playing Elaine Lynch in the Irish thriller series Smother (2021-2023) and for portraying Joan Hathaway in Chloé Zhao's 2025 period drama film Hamnet.

Known For

The Crown

82%

Sarah McCorquodale

2016

Black Doves

71%

Emma

2024

Derry Girls

81%

Adult Janette

2018

Industry

68%

Rose Winter

2020

Conversations with Friends

69%

Paula

2022

A Spy Among Friends

65%

Eleanor Philby

2022

Pure

69%

Connie

2019

Waking the Dead

72%

Una Doyle

2001

National Theatre at Home: Summerfolk

Maria Lvovna

2026

These Sacred Vows

47%

Sandra

2026

Hamnet

77%

Joan

2025

Black Doves

71%

Emma

2024

A Spy Among Friends

65%

Eleanor Philby

2022

Maryland

70%

PC Eddowes

2022

Conversations with Friends

69%

Paula

2022

Smother

65%

Elaine Lynch

2021

Industry

68%

Rose Winter

2020

Cheat

63%

DI Bould

2019

Pure

69%

Connie

2019

Derry Girls

81%

Adult Janette

2018

The Crown

82%

Sarah McCorquodale

2016

Amber

57%

Maeve Flynn-Dunne

2014

The Stag

58%

Linda

2013

The Murder in Angel Lane

69%

Sister Anne

2013

National Theatre Live: King Lear

70%

Regan

2011

Sleep with Me

30%

Catrin

2009

Storyland

70%

Ruth's Mother (voice)

2009

Imagine Me & You

76%

Laura

2006

Song of Songs

43%

Laura

2005

A Cock and Bull Story

61%

Tony's Director

2005

The Honeymooners

55%

Fiona

2004

Citizen Verdict

39%

Jessica Landers

2003

Conspiracy of Silence

48%

Assistant Floor Manager

2003

Goldfish Memory

57%

Kate

2003

Waking the Dead

72%

Una Doyle

2001