S07E08Doctor Who season 7 episode 8: Cold War
Aired 13 April 201342 minRated TV-PG
Where to watch Doctor Who Season 7 in Australia
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Availability checked 16 November 2026.
What happens in “Cold War”
The Doctor and Clara land on a damaged Russian submarine in 1983 as it spirals out of control into the ocean depths. An alien creature is loose on board, having escaped from a block of Arctic ice. With tempers flaring and a cargo of nuclear weapons on board, it’s not just the crew but the whole of humanity at stake!
Episode summary: TMDB.
Before you watch
- It is episode 8 of 13 of season 7, so watch episodes 1 to 7 first.
- It runs about 42 minutes.
- Directed by Douglas Mackinnon, written by Mark Gatiss.
- TMDB users rate it 6.5 out of 10 (79 votes).
Doctor Who trailer
The official trailer for the series (no preview of this episode has been published).
Play video: Doctor Who trailer
Cast and crew of this episode
- Director
- Douglas Mackinnon
- Writer
- Mark Gatiss
- Guest stars
- James Norton as OneginTobias Menzies as Lieutenant StepashinLiam Cunningham as Captain ZhukovDavid Warner as Professor GrisenkoJosh O'Connor as PiotrCharlie Anson as BelevichSpencer Wilding as SkaldakNicholas Briggs as Skaldak (voice)
Credits: TMDB.
More from Doctor Who Season 7
Every episode of Season 7Doctor Who episode guide
Episode names, air dates, runtimes, stills and ratings: TMDB. Air dates are the first broadcast anywhere; where it streams is our daily Australian check.