Guest Stars Betty Bowden as Meg John Breslin as Captain Munro 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 George Lee as Corporal Forbes Edmund Bailey as Attendant Helen Dorward as Nurse Allan Mitchell as Wagstaffe Talfryn Thomas as Mullins Hugh Burden as Channing Neil Wilson as Seeley John Woodnutt as Hibbert Derek Smee as Ransome Prentis Hancock as 2nd Reporter Constance Carling as Auto Plastics Secretary
