| Cast | Jon Pertwee (as The Doctor), Caroline John (as Liz Shaw), Nicholas Courtney (as Brigadier Lethbridge-Stewart), Hugh Burden (as Channing), Derek Smee (as Ransome), John Woodnutt (as Hibbert), Neil Wilson (as Sam Seeley), Betty Bowden (as Meg Seeley), Hamilton Dyce (as General Scobie), John Breslin (as Captain Munro), Clifford Cox (as Sergeant), George Lee (as Corporal Forbes), Tessa Shaw (as UNIT Officer), Antony Webb (as Dr Henderson), Henry McCarthy (as Dr Beavis), Helen Dorward (as Nurse), Allan Mitchell (as Wagstaffe), Talfryn Thomas (as Mullins), Prentis Hancock (as 2nd Reporter), Ellis Jones (as Technician), Edmund Bailey (as Museum Attendant) |
