‘Sex Education’ Season 4 will be the last for the series, there are monumental changes ahead for Otis (Asa Butterfield) and everyone around him in the fourth and final season. Read on to find out the cast of Sex Education’s final semester, out Sept. 21.
Asa Butterfield as Otis
Otis was Moordale’s go-to student sex therapist, but now that he’s moved on to Cavendish College, it’ll be challenging to establish himself as the trusted expert on a new campus. While Otis is great at listening to clients, he tends to neglect the people he’s closest to. Sometimes his actions are self-indulgent, which can lead to fractured friendships and romances. He’s also in a long-distance relationship with Maeve, who is studying in the United States.
Gillian Anderson as Jean
Jean is Otis’ mum. She exudes sexuality and confidence and is an observant, brilliant therapist. However, after enduring a complicated birth, she’s low energy, distracted, and disconnected from her newborn, Joy. Jean takes on a new challenge, trading her typical therapy environment for a role as the host of a sex and relationship radio show.
Emma Mackey as Maeve
Maeve is fiercely intelligent, and though she can come off as being tough, she’s complex, loyal, and kind when it comes to those who mean a lot to her. Having left Moordale for a big opportunity, Maeve is in the US living her dream, enjoying both the social and studious side of things in America — but she misses Otis. Maeve, more mature and levelheaded than ever, is determined not to end up back at the caravan park where she grew up.
Ncuti Gatwa as Eric
Eric is best friends with Otis. He was bullied at Moordale (and nicknamed “Tromboner” after getting an erection while playing his French horn), but at Cavendish College he’s invited to join the Coven, a beloved, popular group of kids. Eric is out and proud unless he’s at church, where he worries they won’t accept him. He’s extremely funny, always full of life, and ready to fully explore his queer identity with his new crew.
Connor Swindells as Adam
When viewers first met him, Adam was Moordale’s biggest bully. When he came out as bisexual and started dating Eric, we got to see his kind and vulnerable side. Then, Eric broke up with him and Adam called it quits with school, trading a conventional education for a gig training dogs. A bit awkward, Adam has a deep need for fatherly love, though he won’t admit it.
Mimi Keene as Ruby
Once leader of Moordale’s popular group the Untouchables where she was practically royalty, Ruby is now a fish out of water at Cavendish. She’s catty and stylish and can be cruel, but her harsh critique of others comes from her own insecurities. She has a stressful home life and despite the designer bags and flashy car, she doesn’t come from a wealthy family. Ruby looks after her dad, who has MS. Beneath her hard exterior, Ruby is extremely vulnerable and complex.
Aimee Lou Wood as Aimee
Aimee is Maeve’s best friend and she’s as loyal as they come. She’s sweet, kind, nurturing, and can be a bit ditzy at times, but that’s what makes her lovable. Aimee was sexually assaulted on the bus and has struggled to fully process her trauma, but she’s on a healing journey and remains determined to reclaim autonomy over her body.
George Robinson as Isaac
Isaac is Maeve’s ex-love interest who lives with his brother Joe after his addict parents were deemed unfit to look after them years ago. Isaac is witty, blunt, and studying at Cavendish in hope of pursuing a career as an artist. He was in an accident that caused his disability, and he gets a laugh out of jokingly lying to people about how he ended up in a wheelchair.
Kedar Williams-Stirling as Jackson
Jackson was Moordale Secondary’s future Olympic swimming champion but he gave it all up when his anxiety got out of control, and he realized the sport wasn’t his passion. While he’s had his share of admirers, he craves deep emotional connection.
Thaddea Graham as Sarah “O” Owen
O runs a sex therapy clinic at Cavendish College and is slowly but steadily building a dedicated client list. She’s an empath, full of insightful observations and helpful advice. She doesn’t really have a group of friends of her own, and she tends to keep her emotions close to her chest.
Dua Saleh as Cal
Cal is a quiet but confident stoner kid, who knows themself and what they want. They moved from America with their mom as a teenager and came out as non-binary when they were 14. They’re keen to stay friends with their ex, Jackson, as they had a strong connection, but he’s still hung up on them romantically. At Cavendish, they start to develop feelings for Aisha, one of the college’s most popular students. Cal started taking testosterone when they turned 18 and are hopeful that they’ll soon receive top surgery, so they can overcome their body dysphoria.
Chinenye Ezeudu as Viv
Viv is an intellectual superstar and incredibly ambitious. Even though she packs her schedule and is determined to attend an elite university, she remains compassionate, rational, and pragmatic. She is Jackson’s best friend.
Dan Levy as Thomas Molloy
Thomas Molloy is a famous author, and all his students are honored to attend his classes, including Maeve. He’s openly queer, dry-humored, and unconventional in his teaching style. He’s a strong advocate of tearing down his students and building them back up in his image — especially the ones with the most potential.
Alexandra James as Aisha
Aisha is a member of the Coven, the popular group at Cavendish, and is deaf. Aisha enjoys fundraising and having a positive impact on others. She’s a cool nerd who’s obsessed with tarot, astrology, and the occasional gossip session.
Anthony Lexa as Abbi
Abbi is the leader of the popular group the Coven, and the queen bee of Cavendish. Everyone wants to be like her or be friends with her. She’s trans, confident, sunny, magnetic, generous, and loyal.
Felix Mufti as Roman
Roman is goofy and a great listener. He’s trans-masculine, has a wealthy, supportive family and got access to gender-affirming private health care when he needed it. Abbi and Roman have been together for a while and are the ultimate power couple.
Alistair Petrie as Michael Groff
Michael is Adam’s dad and the ex-headmaster of Moordale Secondary. He has a tense relationship with Adam, but since divorcing Maureen, losing his job, and living alone in a small apartment, Michael realizes that he needs to repair his relationship with Adam and start making amends for his destructive behavior.
Samantha Spiro as Maureen Groff
Maureen is Adam’s mother and Michael’s ex-wife. She’s compassionate, caring, and kind, wanting nothing more than for Adam and Michael to reconcile. She’s living her best life: going on dates, redecorating the house, and going to martial arts classes.
Lisa Mcgrillis as Joanna
Joanna is Jean’s younger sister. She’s a drifter, always the life of the party but completely directionless. Joanna disregards responsibility and lives in complete denial of her traumatic past. She’s had lots of intense, but not serious, relationships which always end before she becomes vulnerable enough to truly let anyone in. She’s warm, funny, and loving when with her family.