Planet of the Spiders, Part Four

Jon Pertwee The Third Doctor Elisabeth Sladen Sarah Jane Smith Nicholas Courtney Alistair Gordon Lethbridge-Stewart John Levene Sergeant Benton KD Kismet Delgado Spider Ysanne Churchman Spider MM Maureen Morris Spider WR Walter Randall Guard Captain CB Christopher Burgess Barnes JD John Dearth Lupton TL Terence Lodge Moss John Kane Tommy AS Andrew Staines Keaver CF Carl Forgione Land Gareth Hunt Arak RA Ralph Arliss Tuar GM Geoffrey Morris Sabor JM Joanna Monro Rega JL Jenny Laird Neska