Sex Education season 4 cast guide: Who’s who in the fourth season?

School’s back in session, but this time around, it’s not at Moordale Secondary School. In Sex Education season 4, Otis, Eric, and the rest of the former Moordale students attend a new school by the name of Cavendish Sixth Form College, and it’s not what they were expecting at all. Meanwhile, Maeve is living her dream in America, studying in a gifted and talented program at a prestigious college.

As expected, Asa Butterfield and Ncuti Gatwa reprise their roles as Otis and Eric in the fourth season. Otis’s mother Jean, played by Gillian Anderson, also returns. You can also expect to see Emma Mackey, Connor Swindells, Mimi Keene, Aimee Lou Wood, Kedar Williams-Stirling, and many others reprise their roles in the final season.

But who else comes back to close out the teen series? Also, what new characters are introduced this season?

Below, you’ll find a cast and characters guide to who’s who in Sex Education season 4.

Sex Education season 4 cast guide

Asa Butterfield as Otis Milburn

Otis was just an awkward teen boy when we meet him in season 1. However, he eventually becomes the co-founder of the sex clinic at Moordale Secondary School. He was one of the people to go to on campus if students had questions about sex. After the sex clinic was closed down, Otis began focusing on other things, but now he’s ready to start it up again. But it’s not going to be easy to create a sex clinic at his new school, Cavendish Sixth Form College. He also struggles with having a long-distance relationship with Maeve in the fourth season.

• Birthdate: April 1, 1997
• Age: 26 years old
• Zodiac sign: Aries
• Height: 6′
• Where have you seen him before? The Boy in the Striped Pyjamas, Ender’s Game, Miss Peregrine’s Home for Peculiar Children, Choose or Die, All Fun and Games
• Social media: Instagram

Emma Mackey as Maeve Wiley

Maeve ends the third season by leaving the U.K. for the United States to attend a prestigious college for a months-long gifted and talented program. Although she’s enjoying her time abroad, she deeply misses her boyfriend Otis.

• Birthdate: Jan. 4, 1996
• Age: 27 years old
• Zodiac sign: Capricorn
• Where have you seen her before? Death on the Nile, Emily, Barbie
• Social media: None

Ncuti Gatwa as Eric Effiong

Eric is Otis’s best friend whose the life of the party. He’s always there to bring up the mood with his infectious energy. Although he’s out to most people, he’s still not out to people at his church. In Sex Education season 4, Eric joins the popular clique at Cavendish and has fun being his true self. He and Adam break up in the season 3 finale, but will they get back together in season 4?

• Birthdate: Oct. 15, 1992
• Age: 30 years old
• Zodiac sign: Libra
• Where have you seen him before? The Last Letter from Your Lover, Barbie
• Social media: Instagram

Connor Swindells as Adam Groff

Adam wasn’t the nicest person when we meet him in Sex Education season 1. However, when he comes out as bisexual and begins dating Eric, we get to see a new side to him and understand why he was treating people horribly. But everything comes tumbling down for Adam when Eric reveals to him that he cheated on him while he was in Nigeria in the third season. They break up in the season 3 finale, and Adam is left wondering if school is really for him.

• Birthdate: Sept. 19, 1996
• Age: 26 years old
• Zodiac sign: Virgo
• Height: 6′
• Where have you seen him before? Emma, Barbarians, Vigil, SAS: Rogue Heroes, Barbie
• Social media: Instagram

Aimee Lou Wood as Aimee Gibbs

Aimee spends most of the third season trying to be there for her best friend Maeve while also trying to overcome the sexual assault she went through in the second season by talking to Jean. This continues on into the fourth and final season. It’ll be interesting to see how Aimee’s story wraps up.

• Birthdate: Feb. 3, 1994
• Age: 29 years old
• Zodiac sign: Aquarius
• Where have you seen her before? Living, The Electrical Life of Louis Wain
• Social media: Instagram

Mimi Keene as Ruby Matthews

Ruby was the most popular student at Moordale Secondary School and the leader of the clique the Untouchables. But when she arrives at Cavendish, she quickly learns that the school hierarchy is in no way similar to how Mooordale’s was. Ruby and Otis dated in the third season, but ultimately broke things off after Ruby told Otis she loved him and he didn’t say it back. Could they have a chance of getting back together in season 4?

• Birthdate: Aug. 5, 1998
• Age: 25 years old
• Zodiac sign: Leo
• Where have you seen her before? Close, Tolkien, EastEnders, After Everything
• Social media: Instagram

George Robison as Isaac Goodwin

Isaac is introduced in the second season of the teen series. He and his brother Joe move to the Caravan Park and become neighbors with Maeve. He eventually starts dating Maeve, but their relationship ends after it comes out that Maeve and Otis kissed on the school trip to France in the third season. Isaac’s an art student at Cavendish, so we’ll be seeing a lot of him in season 4. Will he end up with anyone by the end of the season?

• Where have you seen him before? Dalgliesh
• Social media: Instagram

Chinenye Ezeudu as Vivienne Odusanya

Vivienne aka Viv is Jackson’s best friend. She’s very smart and her main focus is on succeeding in school so that she can one day attend a prestigious university.

• Where have you seen her before? The School for Good and Evil, Silent Roar, The Stranger
• Social media: Instagram

Kedar Williams-Stirling as Jackson Marchetti

Jackson was the swimming champion at Moordale Secondary School, but due to persistent panic attacks and pressure, he decided to stop swimming. He’s also the former boyfriend of Maeve, but they broke up after he realized that Maeve had feelings for Otis. He eventually befriends Viv in season 2 and Cal in season 3. But his feelings for Cal eventually turn into something more romantic. However, he and Cal decide to remain friends instead of taking things further in their friendship.

• Where have you seen him before? Shank, Wolfblood, Will, Changeland
• Social media: Instagram

Dua Saleh as Cal Bowman

Cal is introduced in Sex Education season 3. They’re non-binary, and how they identify causes an uproar at Moordale in the third season. However, Cal eventually befriends Jackson and has his support. Although Cal and Jackson’s relationship doesn’t end up going anywhere past friendship, Cal tries their best to keep Jackson as a friend. In Sex Education season 4, Cal develops romantic feelings for a student named Aisha at Cavendish Sixth Form College. I wonder what Jackson will think about this.

• Where have you seen them before? Their role in Sex Education is their first major role.
• Social media: Instagram

Gillian Anderson as Jean Milburn

Who’s the father of Jean’s baby? This is the question we all want the answer to, and hopefully, it’s revealed in the fourth season. In Sex Education season 4, Jean isn’t doing well after experiencing a complicated pregnancy. Her confidence isn’t as high and she’s struggling to take care of her new baby without help from Jakob (revealed not to be the baby’s father). However, she’s trying her best to snap back and decides to try her hand at hosting a sex and relationship radio show.

• Where have you seen her before? The X-Files, The Fall, The Crown, The Last King of Scotland, Hannibal, The First Lady
• Social media: Instagram

Alistair Petrie and Samantha Spiro also return as Michael and Maureen Groff in the fourth season. They return as Adam’s parents.

Sex Education season 4 new cast members

Dan Levy as Thomas Molloy

Thomas Molloy is Maeve’s college tutor at the elite Wallace University in the U.S. He’s openly queer and a famous author.

• Where have you seen him before? Schitt’s Creek, Happiest Season, Haunted Mansion, The Idol
• Social media: Instagram

Thaddea Graham as Sarah “O” Owen

O is a student at Cavendish Sixth Form College. She runs her own sex clinic at the school but doesn’t have many friends. Since Otis wants to rebuild a sex clinic at Cavendish, it looks like he and O might bump heads.

• Where have you seen her before? Curfew, The Letter for the King, The Irregulars, Doctor Who, Redemption, Wreck
• Social media: Instagram

Alexandra James as Aisha

Aisha is a member of the popular group at Cavendish, the Coven. She’s also deaf and enjoys tarot card reading, astrology, and fundraising.

• Where have you seen her before? Backstage
• Social media: Instagram

Anthony Lexa as Abbi

Abbi is trans and the leader of the Coven. She’s the most popular student at Cavendish, and very loyal to those she loves.

• Where have you seen her before? Her role in Sex Education is her first major role.
• Social media: Instagram

Felix Mufti as Roman

Roman is trans-masculine and comes from a supportive, wealthy family. He and Abbi are also dating.

• Where have you seen them before? Their role in Sex Education is their first major role.
• Social media: Instagram

Lisa McGrillis plays a new character introduced this season. She plays Joanna, Jean’s younger, “life of the party” sister.

Sex Education season 4 is streaming now on Netflix.