19:45Doctor Who (2005–2022)Series 3Episode 7: 42BBC One Duration: 45 minutes Audio described Signed Fri 29th Oct 2010, 19:45 on BBC ThreeAvailable for yearsWatch nowThe Doctor and Martha must stop a spaceship from hurtling into the sun. But time and a malevolent alien force are against them.ContributorsThe Doctor:David TennantMartha Jones:Freema AgyemanKath McDonnell:Michelle CollinsFrancine Jones:Adjoa AndohRiley Vashtee:William AshOrin Scannell:Anthony FlanaganHal Korwin:Matthew ChambersDev Ashton:Gary PowellAbi Lerner:Vinette RobinsonErina Lessak:Rebecca OldfieldWriter:Chris ChibnallDirector:Graeme HarperProducer:Phil CollinsonGenresDramaSciFi & FantasyBrandDoctor Who (2005–2022)SeriesDoctor Who (2005–2022): Series 3 Source: BBC Online