Justine Mitchell

Acting

Dublin, Ireland

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.

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Known for

The Crown

2016

movie

Hamnet

2025

movie

Imagine Me & You

2006

Black Doves

2024

Derry Girls

2018

Industry

2020

movie

A Cock and Bull Story

2005

movie

The Stag

2013

Conversations with Friends

2022

A Spy Among Friends

2022

Acting29

movie

National Theatre at Home: Summerfolk

2026

Maria Lvovna

How to Get to Heaven from Belfast

2026

Rossa

These Sacred Vows

2026

Sandra

movie

Hamnet

2025

Joan

Black Doves

2024

Emma

A Spy Among Friends

2022

Eleanor Philby

movie

Maryland

2022

PC Eddowes

Conversations with Friends

2022

Paula

The Dry

2022

Áine Harrington

Smother

2021

Elaine Lynch

Industry

2020

Rose Winter

Cheat

2019

DI Bould

Pure

2019

Connie

Derry Girls

2018

Adult Janette

The Crown

2016

Sarah McCorquodale

Amber

2014

Maeve Flynn-Dunne

movie

The Stag

2013

Linda

movie

The Murder in Angel Lane

2013

Sister Anne

movie

National Theatre Live: King Lear

2011

Regan

movie

Sleep with Me

2009

Catrin

Storyland

2009

Ruth's Mother (voice)

movie

Imagine Me & You

2006

Laura

movie

Song of Songs

2005

Laura

movie

A Cock and Bull Story

2005

Tony's Director

movie

The Honeymooners

2004

Fiona

movie

Citizen Verdict

2003

Jessica Landers

movie

Conspiracy of Silence

2003

movie

Goldfish Memory

2003

Kate

Waking the Dead

2001

Una Doyle