Asa Butterfield plays Otis Milburn, Gillian Anderson plays Jean Milburn, and Ncuti Gatwa plays Eric Effiong in Sex Education.
Main cast
- Otis MilburnAsa ButterfieldSeasons 1-4Main
- Jean MilburnGillian AndersonSeasons 1-4Main
- Eric EffiongNcuti GatwaSeasons 1-4Main
- Maeve WileyEmma MackeySeasons 1-4Main
- Adam GroffConnor SwindellsSeasons 1-4Main
- Jackson MarchettiKedar Williams-StirlingSeasons 1-4Main
- Aimee GibbsAimee Lou WoodSeasons 1-4Main
- Michael GroffAlistair PetrieSeasons 1-4Main
- Ruby MatthewsMimi KeeneSeasons 1-4Main
- Viv OdusanyaChinenye EzeuduSeasons 2-4Main
Supporting cast
- Samantha GroffSamantha SpiroSeasons 1-4Supp
- Lily IglehartTanya ReynoldsSeasons 1-3Supp
- Isaac GoodwinGeorge RobinsonSeasons 2-4Supp
- Ola NymanPatricia AllisonSeasons 1-3Supp
- Colin HendricksJim HowickSeasons 1-4Supp
- Jakob NymanMikael PersbrandtSeasons 1-3Supp
- Emily SandsRakhee ThakrarSeasons 1-4Supp
- Steve MorleyChris JenksSeasons 1-3Supp
- Anwar BakshiChaneil KularSeasons 1-3Supp
- Olivia HananSimone AshleySeasons 1-3Supp
- Maeve's mother, Erin WileyAnne-Marie DuffSeasons 2-3Supp
- RahimSami OutalbaliSeasons 2-3Supp
- Joe GoodwinGeorge SomnerSeasons 2-4Supp
- Cal BowmanDua SalehSeasons 3-4Supp
- Peter GroffJason IsaacsSeasons 3Supp
- Thomas MolloyDan LevySeasons 4Supp
- Hope HaddonJemima KirkeSeasons 3Supp
- AnnaIndra OvéSeasons 3-4Supp
- Maureen GroffSamantha SpiroSeasons 1-4Supp
- Mr Colin HendricksJim HowickSeasons 1-4Supp
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About this cast
Sex Education is a Netflix comedy-drama that ran for four seasons from 2019–2023. The ensemble cast is led by Asa Butterfield, Gillian Anderson, Ncuti Gatwa and Emma Mackey.
Cast FAQs
Who plays Maeve Wiley in Sex Education?
Maeve Wiley is played by Emma Mackey.
Who plays Eric Effiong in Sex Education?
Eric Effiong is played by Ncuti Gatwa.
Who plays Jean Milburn in Sex Education?
Jean Milburn is played by Gillian Anderson.
Who plays Cal Bowman in Sex Education?
Cal Bowman is played by Dua Saleh.
How many cast members are in Sex Education?
There are 30 cast members in total, with 10 lead and 20 supporting actors.
Sources: IMDb · IMDb · Netflix Tudum · British Comedy Guide · Wikipedia · Updated June 2026
Related cast guide: Bad Education