Sex Education (TV) Cast
The cast of Sex Education. Updated on October 1, 2025.
143 actors
Asa Butterfield
as Otis Milburn (32 episodes)

Asa Butterfield portrays the character of Otis Milburn in Sex Education. Otis is a socially awkward teenager who, despite his own insecurities, becomes an unexpected expert in sex therapy due to his mother's profession as a sex therapist.

Gillian Anderson
as Jean Milburn (32 episodes)

Gillian Anderson plays the role of Jean Milburn, Otis' mother, in Sex Education. She is a sex therapist who is open about her profession, which sometimes creates tension in her relationship with Otis.

Ncuti Gatwa
as Eric Effiong (32 episodes)

Ncuti Gatwa portrays the character of Eric Effiong in Sex Education. Eric is Otis' best friend and is openly gay. He navigates the challenges of being true to himself in a conservative environment.

Emma Mackey
as Maeve Wiley (32 episodes)

Emma Mackey plays the role of Maeve Wiley in Sex Education. Maeve is a rebellious and intelligent student who becomes Otis' business partner in running an underground sex therapy clinic at school.

Kedar Williams-Stirling
as Jackson Marchetti (32 episodes)

Kedar Williams-Stirling plays the role of Jackson Marchetti in Sex Education. Jackson is a popular and athletic student who becomes involved in a complicated relationship with Maeve.

Thaddea Graham
as Sarah 'O' Owens (8 episodes)
Mimi Keene
as Ruby Matthews (25 episodes)
Anthony Lexa
as Abbi Montgomery (8 episodes)
Tanya Reynolds
as Lily Iglehart (22 episodes)
Connor Swindells
as Adam Groff (32 episodes)

Connor Swindells portrays the character of Adam Groff in Sex Education. Adam is the school's head boy and the son of the school's headmaster. He struggles with his own insecurities and his relationship with his father.

Aimee Lou Wood
as Aimee Gibbs (32 episodes)

Aimee Lou Wood portrays the character of Aimee Gibbs in Sex Education. Aimee is a kind-hearted and popular student who experiences an unexpected trauma that affects her personal life.

Dua Saleh
as Cal Bowman (16 episodes)
Patricia Allison
as Ola Nyman (21 episodes)
Chinenye Ezeudu
as Viv Odusanya (24 episodes)
Mikael Persbrandt
as Jakob Nyman (20 episodes)
Alistair Petrie
as Michael Groff (32 episodes)

Alistair Petrie plays the role of Michael Groff in Sex Education. Michael is Adam's father and the headmaster of Moordale Secondary School. He has a strained relationship with his son and struggles with his own personal issues.

Rakhee Thakrar
as Emily Sands (18 episodes)
Jemima Kirke
as Hope Haddon (8 episodes)
George Robinson
as Isaac Goodwin (22 episodes)
Hannah Gadsby
as Celia (8 episodes)
Anne-Marie Duff
as Erin Wiley (14 episodes)
Jim Howick
as Colin Hendricks (20 episodes)
Felix Mufti
as Roman (8 episodes)
Reda Elazouar
as Beau (8 episodes)
Alexandra James
as Aisha (8 episodes)
Adam Young
as Birthday Twin (1 episode)
Lowri Palfrey
as Simone McAllister (1 episode)
Tom Mackley
as Liam (1 episode)
Edward Bluemel
as Sean Wiley (6 episodes)
Zak Shukor
as Dr. Atwan (1 episode)
Dominic Applewhite
as Charlie (1 episode)
Lu Corfield
as Sarah (1 episode)
Lily Frazer
as Tiana (1 episode)
Jonny Amies
as Sam (1 episode)
Max Boast
as Tom Baker (2 episodes)
Samuel Jordan
as Simon (1 episode)
T'Nia Miller
as Maxine Tarrington (2 episodes)
Stephen Fry
as NSQC Quizmaster (1 episode)
Jack Bandeira
as Eli (1 episode)
Daniel Betts
as Sgt Morris (1 episode)
Spike Leighton
as Luke (1 episode)
Youssef Kerkour
as Nathan (1 episode)
Alice Hewkin
as Tanya (2 episodes)
George Georgiou
as Yousef (3 episodes)
Liz Jadav
as Doctor (1 episode)
Behnaz VAKILI
as Malek's Mother (1 episode)
Dan Mersh
as Harry (2 episodes)
Olive Gray
as Kate (1 episode)
Sanchia Maccormack
as Quiz Moderator (1 episode)
Catriona Knox
as Mrs. Gibbs (1 episode)
Freddie Watkins
as Otis' Client Without a Problem (1 episode)
Anjana Vasan
as Abortion Clinic Protestor (1 episode)
Anne Kavanagh
as Jean's Kegel Patient (1 episode)
Tom Colley
as Thug (1 episode)
Aurora Burghart
as Good Samaritan (1 episode)
Hannah Boyce
as Harriet Anders (2 episodes)
Ruben Cryer
as Young Otis (1 episode)
Milly Thomas
as Female Client (1 episode)
Ezra Furman
as Band Singer (1 episode)
Daniel Adegboyega
as Rydel (1 episode)
India Ria Amarteifio
as Lizzie (1 episode)
Francis Johnson
as Lizzie's Dad (1 episode)
Dan Renton Skinner
as Swimming Instructor (3 episodes)
Kadeem Ramsay
as OctoBoy (2 episodes)
Jason Baughan
as Military Guy (1 episode)
Lily Newmark
as Ruthie (3 episodes)
Ann Queensberry
as Lady in Checkout Line (1 episode)
Toby Williams
as Tim (2 episodes)
Ashna Rabheru
as Gwen (1 episode)
Gbemisola Ikumelo
as Huma (1 episode)
Hope Jones
as Martha (1 episode)
Neil Maskell
as Police Officer (1 episode)
Deobia Oparei
as Mr. Effiong (6 episodes)
Tsion Habte
as Fiona (1 episode)
Susan Lynch
as Tara Gibbs (1 episode)
Natasha Joseph
as Abortion Clinic Nurse (1 episode)
Sharon Duncan-Brewster
as Roz Marchetti (13 episodes)
Mirren Mack
as Florence (3 episodes)
Sindhu Vee
as Olivia's Mum (2 episodes)
Jack Helsby
as Man on Bus (4 episodes)
David Cann
as Quiz Moderator (1 episode)
Olivia Beaumont
as Young Maeve (1 episode)
Femi Elufowoju Jr.
as Prophet Joshua (2 episodes)
Andrew Joshi
as A&E Doctor (2 episodes)
Sarah Malin
as (1 episode)
Myriam Acharki
as (1 episode)
Jonny Muir
as (1 episode)
Dee Ahluwalia
as Benvolio (1 episode)
Lino Facioli
as Dex Thompson (6 episodes)
Sarah Durham
as Headmistress (1 episode)
Rosie Dwyer
as Dex's Girlfriend (1 episode)
Maud Druine
as Student (1 episode)
Maeve Harper
as Student (1 episode)
Lisa Palfrey
as Cynthia (9 episodes)
Roman Hayeck-Green
as Owen (1 episode)
Joe Wilkinson
as Jeffrey (7 episodes)
David Layde
as Roland Matthews (1 episode)
Armin Karima
as Malek Amir (4 episodes)
Tom Atkinson
as Nick (3 episodes)
Kieron Moore
as Dylan (2 episodes)
For the best insights and data about the TV show Sex Education, visit our main Sex Education page.