Justine Mitchell

Biography

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

Waking the Dead

Industry

Hamnet

How to Get to Heaven from Belfast

Derry Girls

Black Doves

Conversations with Friends

All Movies (13)

• Hamnet2025 · as Joan
• Maryland2022 · as PC Eddowes
• The Stag2013 · as Linda
• The Murder in Angel Lane2013 · as Sister Anne
• National Theatre Live: King Lear2011 · as Regan
• Sleep with Me2009 · as Catrin
• Imagine Me & You2006 · as Laura
• Song of Songs2005 · as Laura
• A Cock and Bull Story2005 · as Tony's Director
• The Honeymooners2004 · as Fiona
• Citizen Verdict2003
• Conspiracy of Silence2003
• Goldfish Memory2003 · as Kate

All TV Shows (15)

• How to Get to Heaven from Belfast2026 · as Rossa
• These Sacred Vows2026 · as Sandra
• Black Doves2024 · as Emma
• A Spy Among Friends2022 · as Eleanor Philby
• Conversations with Friends2022 · as Paula
• The Dry2022 · as Áine Harrington
• Smother2021 · as Elaine Lynch
• Industry2020 · as Rose Winter
• Cheat2019 · as DI Bould
• Pure2019 · as Connie
• Derry Girls2018 · as Adult Janette
• The Crown2016 · as Sarah McCorquodale
• Amber2014 · as Maeve Flynn-Dunne
• Storyland2009 · as Ruth's Mother (voice)
• Waking the Dead2001 · as Una Doyle