Saoirse-Monica Jackson plays Erin Quinn, Louisa Harland plays Orla McCool, and Nicola Coughlan plays Clare Devlin.
Main cast
- Erin QuinnSaoirse-Monica JacksonSeasons 1–3Main
- Orla McCoolLouisa HarlandSeasons 1–3Main
- Clare DevlinNicola CoughlanSeasons 1–3Main
- Michelle MallonJamie-Lee O'DonnellSeasons 1–3Main
- James MaguireDylan LlewellynSeasons 1–3Main
- Mary QuinnTara Lynne O'NeillSeasons 1–3Main
- Sarah McCoolKathy Kiera ClarkeSeasons 1–3Main
- Gerry QuinnTommy TiernanSeasons 1–3Main
- Joe McCool (Granda Joe)Ian McElhinneySeasons 1–3Main
- Sister MichaelSiobhán McSweeneySeasons 1–3Main
Supporting cast
- Jenny JoyceLeah O'RourkeSeasons 1–3Supp
- AislingBeccy HendersonSeasons 1–3Supp
- Deirdre MallonAmelia CrowleySeasons 1–3Supp
- Miss MooneyClaire RaffertySeasons 1–3Supp
- Geraldine DevlinPhilippa DunneSeasons 2–3Supp
- Donna Traynor (news anchor)Donna TraynorSeasons 2–3Supp
- Colm McCoolKevin McAleerSeasons 1–3Supp
- DennisPaul MallonSeasons 1–3Supp
Guest & voice
- Self / Police Chief (Good Friday Agreement episode)Liam NeesonSeasons 3Guest
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About this cast
Derry Girls is a Channel 4/Netflix UK sitcom (2018–2022) set in 1990s Northern Ireland. The main cast features Saoirse-Monica Jackson as Erin Quinn, Louisa Harland as Orla McCool, and Nicola Coughlan as Clare Devlin.
Cast FAQs
Who plays Erin Quinn in Derry Girls?
Saoirse-Monica Jackson plays Erin Quinn.
Who is in the cast of Derry Girls?
The main cast includes Saoirse-Monica Jackson, Louisa Harland, Nicola Coughlan, and Jamie-Lee O'Donnell.
How many cast members are in Derry Girls?
In total, 19 cast members appear across the three seasons.
Sources: IMDb · IMDb · Netflix · Wikipedia · Fandom · Updated June 2026
Related cast guides: Calendar Girls · 2 Broke Girls