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Doctor Who· Season 7 · Episode 21

Inferno, Part Three

S07E21·9.0·May 23, 1970·25m·BBC One

The Doctor finds himself in a parallel universe where Britain is a dictatorship and the Inferno Project is a slave labour camp policed by his friends' counterparts.

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#2In Season 7of 25 rated episodes
#162All-timeof 700 rated episodes
+0.2vs season avgSeason 7 averages 8.8
1970First airedMay 23, 1970

Guest stars

Christopher BenjaminChristopher Benjaminas Sir Keith Gold
Derek WareDerek Wareas Private Wyatt
Pat GormanPat Gormanas Primord
Dave CarterDave Carteras Primord
Sheila Dunnas Dr. Petra Williams
Sheila Dunnas Petra Williams
Olaf PooleyOlaf Pooleyas Director Stahlman
Olaf PooleyOlaf Pooleyas Professor Stahlman
Derek NewarkDerek Newarkas Greg Sutton
David SimeonDavid Simeonas Private Latimer
Walter HenryWalter Henryas Primord
Peter ThompsonPeter Thompsonas Primord
Philip Ryanas Primord
Keith Jamesas Patterson

Crew

Barry LettsBarry LettsDirector
Douglas CamfieldDouglas CamfieldDirector
Don HoughtonWriter

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