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Tamsin Greig makes her Big Finish debut in the next instalment of Planet Krynoid.

She joins Paul McGann and Nicola Walker in Planet Krynoid: Survivors, due June 2026.

This full-cast audio drama box set, following on from 2025’s Nightfall, continues the story of Sunlight, a civilisation devastated by the carnivorous plants known as the Krynoids, which first appeared in the 1976 Doctor Who story The Seeds of Doom. The remaining residents of Sunlight fight for their survival as the Krynoid threat continues, and the truth of what really happened to Sunlight’s first colony is revealed, leading to an ultimate showdown between man and plant. And, in the box set’s second episode, Greig joins the action as Amesus Vail, the overworked overseer of Station One, as this safe haven turns into a base under siege. She’s joined by two visiting travellers – the Eighth Doctor (Paul McGann) and Liv Chenka (Nicola Walker).

On making her Big Finish debut, Tamsin Greig said: “This is my first audio Doctor Who – it’s amazing how it’s taken so long for Big Finish to ask me! Amesus Vail is on this distant planet and is pretty stressed with the isolation, the abandonment and having to keep this show on the road. If you go green on this planet, you’re dying – it’s a lovely inversion!”

The Hunt by Jonathan S Powell

Blackmailed by the unscrupulous Raynor Cross, Sunlight survivors Tiro Hart and Letty Hodan must battle the icy remains of the life they left behind. But they are not the only ones with their sights set on a pod.

The Harrow by Georgia Cook

Nobody knows what really happened to Station One, Verdana’s first, doomed colony. But after materialising in the path of a Krynoid, the Doctor and Liv are about to find out.

The Harvest by Jonathan Morris

When a band of survivors reach a mysterious settlement, they are promised food, shelter and harmony. But deliverance in Greenhaven comes at a price – and Father Nature is ready to collect.

Planet Krynoid: Survivors features several returning cast members from Nightfall, including Nye Occomore, Em Prendergast, Melody Chikakane Brown, Ian Conningham and Sarah Whitehouse. And, new cast members include Gina Bellman (Coupling), Juliet Aubrey (Primeval), Karl Theobald (Green Wing), Simon Kane (Good Omens), and Angus Wright (Peep Show), with further names to be announced.

Producer, director and writer Jonathan S Powell said: “I’m thrilled to be back on the Krynoid homeworld for three more terrifying tales set soon after the events of Nightfall. Our scattered survivors are running on borrowed time in the present, while the Doctor and Liv battle another Krynoid incursion a hundred years before.

“I’m especially delighted with the performers we’ve brought into the series this time around, not least the enormously talented Tamsin Greig in her Big Finish debut as Overseer Amesus Vail. Alongside Tamsin and our returning survivors, listeners will be treated to star turns from Karl Theobald and Simon Kane as a pair of deluded monster hunters, Juliet Aubrey as a ruthless executive, and Angus Wright as a fanatical plant-loving priest, who harks back more than a little to Harrison Chase. That’s not to mention Paul McGann and Nicola Walker as the always dependable Eighth Doctor and Liv.

“There’s so much to enjoy here, and more story yet to be told – if anyone survives, that is.”

The Worlds of Doctor Who – Planet Krynoid: Survivors is now available to pre-order for just £19.99 (download to own) or £29.99 (download to own + collector’s edition 3-disc CD box set), exclusively from http://www.bigfinish.com. Please note: the collector’s edition CD box set is strictly limited to 1,000 copies and will not be repressed.