S07E03Doctor Who season 7 episode 3: A Town Called Mercy
Aired 15 September 201245 minRated TV-PG
Where to watch Doctor Who Season 7 in Australia
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Availability checked 16 November 2026.
What happens in “A Town Called Mercy”
The Doctor gets a Stetson (and a gun!), and finds himself the reluctant Sheriff of a Western town under siege by a relentless cyborg, who goes by the name of the Gunslinger. But who is he and what does he want? The answer seems to lie with the mysterious, Kahler-Jex, an alien doctor (yes another one!) whose initial appearance is hiding a dark secret.
Episode summary: TMDB.
Before you watch
- It is episode 3 of 13 of season 7, so watch episodes 1 to 2 first.
- It runs about 45 minutes.
- Directed by Saul Metzstein, written by Toby Whithouse.
- TMDB users rate it 6.8 out of 10 (70 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
- Saul Metzstein
- Writer
- Toby Whithouse
- Guest stars
- Arthur Darvill as Rory WilliamsBen Browder as IsaacAdrian Scarborough as Kahler-JexDominic Kemp as Kahler-MasGarrick Hagon as AbrahamAndrew Brooke as The GunslingerJoanne McQuinn as SadieWilliam Byrd Wilkins as The Preacher
Credits: TMDB.
More from Doctor Who Season 7
Previous · S07E02Dinosaurs on a Spaceship8 September 2012
Next · S07E04The Power of Three22 September 2012Every 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.