Fair rating?Doctor Who· Season 6 · Episode 14
The Invasion, Part Four
The Doctor and Jamie enlist the help of UNIT to rescue Zoe and Isobel before trying to find out what Vaughn is really up to.
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#2In Season 6of 44 rated episodes
#273All-timeof 700 rated episodes
+0.2vs season avgSeason 6 averages 8.6
1968First airedNovember 23, 1968
Guest stars
Nicholas Courtneyas Alistair Gordon Lethbridge-Stewart
Pat Gormanas Cyberman
Peter Hallidayas Packer
Kevin Stoneyas Tobias VaughnSally Faulkneras Isobel
Robert Sidawayas Captain Turner
James Thornhillas Sergeant Walters
Edward Burnhamas Professor Watkins
Edward Dentithas Major-General Rutlidge
Sheila Dunnas Telephone Operator (voice)
Crew
Douglas CamfieldDirectorDerrick SherwinWriter
Kit PedlerStory