S03E07Doctor Who season 3 episode 7: 42
Aired 19 May 200748 minRated TV-PG
Where to watch Doctor Who Season 3 in Australia
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Availability checked 16 November 2026.
What happens in “42”
In a far-flung galaxy, saboteurs are at work, and crew members are being possessed. The TARDIS crew find themselves in the 42nd century on a spaceship, SS Pentallian, slowly being pulled into a sun, and must find a way to survive
Episode summary: TMDB.
Before you watch
- It is episode 7 of 13 of season 3, so watch episodes 1 to 6 first.
- It runs about 48 minutes.
- Directed by Graeme Harper, written by Chris Chibnall.
- TMDB users rate it 7.1 out of 10 (78 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
- Graeme Harper
- Writer
- Chris Chibnall
- Guest stars
- Michelle Collins as Kath McDonnellWilliam Ash as Riley VashteeAnthony Flanagan as Orin ScannellMatthew Chambers as Hal KorwinGary Powell as Dev AshtonVinette Robinson as Abi LernerRebecca Oldfield as Erina LessakAdjoa Andoh as Francine Jones
Credits: TMDB.
More from Doctor Who Season 3
Next · S03E08Human Nature (1)26 May 2007Every episode of Season 3Doctor 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.