Sex Education kicked off in 2019, starring Anglo faves Gillian Anderson (The Fall) and Asa Butterfield (Hugo). Anderson takes on the role of a sex therapist and single mum to a teenage son, Otis (Butterfield).

There have been two seasons to date, with a third on its way.

It's just been confirmed that Jason Isaacs (The OA) will be joining the established cast as Peter Groff, reports Empire Online. He's the older brother to Mr. Groff (Alistair Petrie), the headmaster of Otis' school. He's described as being more successful than his little brother and not shy to make it known. Mr. Groff goes to live with his brother, as he's now separated from his wife.

As you can imagine, it's a bit awkward for Otis having a sex therapist as a parent. It's apparent in the trailer for season one, where Anderson's character asks her son, "I've noticed you've been pretending to masturbate, do you want to talk about it?" Uh, that'd be a "no."

https://www.youtube.com/watch?v=Hd2ldTR-WpI

While things may be a bit uncomfortable for Otis at home, he uses his mother's expertise to his advantage at school, by setting up his own makeshift clinic. We'd like to say his motives are altruistic, to delve out (unsubstantiated) advice to his peers, but it's more about upgrading him and his friend's (Ncuti Gatwe) social status.

In season two, things get even more uncomfortable when Otis' mother shows up to school to give a sex talk:

https://www.youtube.com/watch?v=qZhb0Vl_BaM

Season three is set to premiere in 2021 over at Neflix. In addition to Isaacs, you can also look for newly added cast members, Jemima Kirke (Girls) and singer-songwriter Dua Saleh.

Have you been enjoying this series so far?