Guest Stars Betty Bowden as Meg Hugh Burden as Channing George Lee as Corporal Forbes Alan Mitchell as Wagstaffe Tessa Shaw as UNIT Officer Ellis Jones as Technician Clifford Cox as Sergeant Hamilton Dyce as Major General Scobie Antony Webb as Dr. Henderson Henry McCarthy as Dr. Beavis Prentis Hancock as 2nd Reporter Edmund Bailey as Attendant Helen Dorward as Nurse Talfryn Thomas as Mullins Neil Wilson as Seeley John Woodnutt as Hibbert Derek Smee as Ransome John Breslin as Captain Munro
