Posted in: Netflix, TV | Tagged: Heartstopper

Heartstopper Forever: Oseman on Reason for Recasting Sarah Nelson

Heartstopper showrunner Alice Oseman on including Sarah Nelson in the finale and why Anna Maxwell Martin needed to replace Olivia Colman.

Published Sun, 19 Apr 2026 14:37:08 -0500

by Ray Flook

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Article Summary

Heartstopper Forever brings new cast members, including Anna Maxwell Martin as Sarah Nelson.
Sarah’s return was vital for the finale as Nick faces emotional challenges in the last chapter.
Olivia Colman was unable to return, leading to a difficult but necessary recasting decision.
Showrunner Alice Oseman praises Martin’s gentle energy and magic in scenes with Kit Connor.

With Netflix and showrunner & graphic novel series creator Alice Oseman's Joe Locke and Kit Connor-starring Heartstopper Forever set to hit streaming screens sometime later this year, viewers can expect to see two new faces joining the cast – one in a popular role. Anna Maxwell Martin (Motherland, Ludwig) and Derek Jacobi (Last Tango in Halifax; I, Claudius) are part of the final send-off, with Jacobi in a guest-starring role and Martin taking over the role of Sarah Nelson, Nick's mother, originally played by Olivia Colman (The Crown) during the first two seasons. During a recent interview, Oseman explained the mindset behind bringing Sarah back and why Martin would be stepping in for Colman.

"When beginning to work on the 'Heartstopper Forever' screenplay, I knew how important it was that Sarah, Nick's mum, appeared in the story. Since Season 1, we have seen how close Nick is with his mum; she's one of the few people he can turn to in moments of crisis. While in Season 3, we were able to tweak the story to avoid any appearance of Sarah, it felt nonsensical for her to be absent from this final chapter, given some of the emotional struggles Nick faces," Oseman shared about why Sarah needed to be included.

Oseman continued, "Sadly, Olivia Colman was not able to join us for the film, so we made the very difficult decision to recast the role, rather than exclude the character. We are deeply grateful for Olivia's beautiful performance as Sarah in Seasons 1 and 2 of 'Heartstopper,' through such iconic moments as Nick coming out as bisexual, and we know that her performance will live on in the hearts of every Heartstopper fan. We are overjoyed to welcome the incredible Anna Maxwell Martin into the role of Sarah for Heartstopper Forever. Anna perfectly embodies Sarah's gentle, down-to-earth energy, and it was magical to witness her scenes with Kit Connor during the film shoot. I can't wait for 'Heartstopper' fans to experience her interpretation of Sarah Nelson."

After Season 3, the couple is inseparable. But, with Nick (Connor) preparing to leave for university and Charlie (Locke) finding new independence at school, the reality of a long-distance relationship begins to weigh on them. Doubts take hold, and their relationship faces its biggest challenge yet. Meanwhile, Nick and Charlie's friends are also navigating the ups and downs of love and friendship, confronting the bittersweet challenges of growing up and moving on.

Along with Connor, Locke, Martin, and Jacobi, Netflix's Heartstopper finale stars Yasmin Finney as Elle Argent, Will Gao as Tao Xu, Corinna Brown as Tara Jones, Kizzy Edgell as Darcy Olsson, Tobie Donovan as Isaac Henderson, Rhea Norwood as Imogen Heaney, Jenny Walser as Tori Spring, Fisayo Akinade as Mr. Ajayi, Nima Taleghani as Mr. Farouk, Leila Khan as Sahar Zahid, Bradley Riches as James McEwan, Darragh Hand as Michael Holden, and Eddie Marsan as Geoff Young.