Netflix’s Sex Education is gearing up to welcome actors Jason Isaacs, Jemima Kirke, and Dua Saleh for season 3.

According to Deadline, actors Jason Isaacs (Harry Potter), Jemima Kirke (Girls), and recording artist and songwriter Dua Saleh have all joined the cast of Sex Education season 3.

Both Kirke and Isaacs have joined the cast of the popular Netflix dramedy in guest starring roles.

Specifically, Isaacs is set to take on the role of Peter Groff, who also happens to be Headmaster Groff’s more successful, and not-so modest older brother. Fans of the series will likely recall that the second season touched on The Groff’s marriage troubles, ultimately leading to a separation between Mr. Groff and his wife. Since then, the Mooredale headmaster has been staying with his brother Peter, which is where Isaacs comes into the fold.

Meanwhile, Kirke is set to take on the role of the new headmistress, Hope, who also happens to be a Morale alum. Hope’s plan is to get Moordale back up to par, and restore the secondary school into the pillar of excellence it’s always been.

Finally, Saleh has been cast in a recurring role on season 3. The recording artist’s involvement with Sex Education marks their acting debut. They’ll be playing Cal on the series— a nonbinary student who doesn’t waste much time when it comes to butting heads with Hope and her new vision for the school.

Production on Sex Education season 3 has already started out in Wales, and the series is expected to return with new episodes on Netflix sometime in 2021.