© 2026 The Couch Critic
Status
Ended
Release
2025 - 2025
Seasons / Eps
1 / 5
Streaming availability by country
We couldn't find any streaming, rent, or buy options for this content in US
When a 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.
59 Cast Members
Russell Tovey
Barclay Pierre-Dupont
5 Episodes
Gugu Mbatha-Raw
Salt
5 Episodes
Jemma Redgrave
Kate Lethbridge-Stewart
5 Episodes
Ruth Madeley
Shirley Bingham
5 Episodes
George Robinson
Steve Chesney
5 Episodes
Barbara Probst
General Dominique Dussolier
5 Episodes
Alexander Devrient
Colonel Christofer Ibrahim
5 Episodes
Gethin Alderman
Homo Aqua
5 Episodes
Charles Sandford
Homo Aqua
5 Episodes
Stewart Alexander
General Oscar Gunsberg
4 Episodes
Colin McFarlane
General Austin Pierce
4 Episodes
Francesca Corney
Sergeant Hana Chakri
4 Episodes
Hannah Donaldson
Captain Louise Mackie
4 Episodes
Catherine Garton
Corporal Jane Hart
3 Episodes
Vincent Franklin
Prime Minister Harry Shaw
4 Episodes
Ann Akinjirin
Barbara Pierre-Dupont
4 Episodes
Patrick Baladi
Sir Keith Spears
3 Episodes
Antonia Bernath
Rose-Marie Hunt
3 Episodes
William Gaminara
Ted Campbell
3 Episodes
Mei Nac
Min Tso
3 Episodes
