According to Doctor Who Magazine 607, the Doctor Who spin-off, The War Between the Land and the Sea, will be coming “next year” via the BBC and Disney+.

The five-part series stars Russell Tovey and Gugu Mbatha-Raw, who lead the cast of the new spin-off series, alongside fellow Doctor Who alumni Jemma Redgrave and Alexander Devrient.

The series is created by Doctor Who showrunner and executive producer Russell T Davies, who has co-written the series with Pete McTighe.

Tovey, who played Midshipman Alonso Frame from the Doctor Who episodes Voyage of the Damned and The End of Time, Mbatha-Raw, who previously played Tish Jones, companion Martha Jones’ sister in the Doctor Who television stories Smith and Jones will both play a new characters.

As rumoured, the spin-off will feature Sea Devils. When the fearsome and ancient species emerges from the ocean, dramatically revealing themselves to humanity, an international crisis is triggered. With the entire population at risk, UNIT step into action as the land and sea wage war.

“What happens when the Doctor isn’t in town? That’s what this show is about,” Davies revealed at San Diego Comic-Con. “How does the world cope? And so we’ve got a five-part spin-off coming called The War Between the Land and the Sea which is the story of the Sea Devils from Doctor Who, which were creatures from 1972. There’s a race that lives beneath the oceans. They wake up and they see the state of the oceans that we that we have put it in. We have wrecked the place and it is war and it’s war on an epic scale. It’s going to tremendous. It’s got a tremendous cast.”

The War Between the Land and the Sea begins filming internationally in August 2024 directed by Dylan Holmes Williams, who filmed the 2024 Series episodes 73 Yards and Dot and Bubble.