Sex Education season four spoilers follow.

Sex Education's fourth and final season is full of new faces.

The lively Cavendish bunch met the scattered Moordale students as they joined the sixth-form college for the school year.

The main trio ruling the school through kindness and a 'no-gossip' policy is made up of Abbi (Anthony Lexa), Roman (Felix Mufti) and Aisha (Alexandra James). Their 'kill them with kindness' attitude makes joining their clique impossible for former popular mean-girl Ruby (Mimi Keene) to infiltrate.

You know who doesn't struggle? Former outcast Eric (Ncuti Gatwa). He's simply flourishing with his new found family, which creates tension between him and his longtime bestie Otis (Asa Butterfield).

asa butterfield, mimi keene, sex education, season 4
Netflix

However, the drama isn't just for the school grounds, which means new characters also crop up outside of the college gates.

What to Read Next

One new face who has no doubt piqued your interest is Maeve's brother's friend Dodgy Mo, who looks distinctly familiar in a 'can't-put-my-finger-on-it' sort of way.

It's time to put your end to your head scratching and reveal where you've seen Dodgy Mo before.

emma mackey, jack gleeson, sex education, season 4
Netflix

Who plays Dodgy Mo in Sex Education?

Dodgy Mo is none other than Game of Thrones' Jack Gleeson, who played Joffrey Baratheon on the HBO drama.

Yes, the relaxed stoner with the chill attitude, overgrown dark hair and bloodshot eyes is the same entitled brat who used to strut around the Red Keep ordering the lopping-off of people's heads and the cutting-out of tongues... until he choked to death on poisoned wine at his own wedding.

Gleeson is almost unrecognisable in his Sex Ed role, which is hardly surprising.

The missing short crop of blonde hair and sadistic twinkle behind the eyes were signature to Joffrey. And the character catapulted Gleeson into the spotlight, firmly fixing him in our minds as the Lannister/Baratheon with a cruel streak and an attitude problem. It's a very hard image to shake.

jack gleeson in sex education and game of thrones
HBO//Netflix

Gleeson took a hiatus from acting following his Game of Thrones exit in 2014 after announcing that he was quitting the business. At the time, he said acting full-time had made him less "passionate" about the craft.

Since then, only a few roles — including the 2020 BBC Comedy Out of Her Mind — have been able to tempt Gleeson back to the screen. However, the former King of the Andals, the Rhoynar and the First Men is scheduled to make a proper comeback in the BBC television adaptation of Enid Blyton's The Famous Five.

Gleeson will take on the role of Wentworth and star alongside Diaana Babnicova's George, Elliott Rose's Julian, Kit Rakusen's Dick and Flora Jacoby Richardson's Anne.

The actor also starred in the recently released Irish thriller In the Land of Saints and Sinners, featuring Liam Neeson and Kerry Condon.

All seasons of Sex Education are available to stream now on Netflix.

Headshot of Janet A Leigh

TV writer, Digital Spy Janet completed her Masters degree in Magazine Journalism in 2013 and has continued to grow professionally within the industry ever since.  For six years she honed her analytical reviewing skills at the Good Housekeeping institute eventually becoming Acting Head of Food testing.  She also freelanced in the field of film and TV journalism from 2013-2020, when she interviewed A-List stars such as Samuel L Jackson, Colin Firth and Scarlett Johansson. In 2021 she joined Digital Spy as TV writer where she gets to delve into more of what she loves, watching copious amounts of telly all in the name of work. Since taking on the role she has conducted red carpet interviews with the cast of Bridgerton, covered the BAFTAs and been interviewed by BBC Radio and London Live. In her spare time she also moonlights as a published author, the book Gothic Angel.