Guest Stars Jane Wymark as Joyce Barnaby Barry Jackson as Dr. George Bullard Catherine Bott voices Solo Voice Rupert Vansittart as Selwyn Proctor Serena Gordon as Ginny Sharp Caroline Harker as Tamsin Proctor Angela Thorne as Lady Lavinia Chetwood Gerda Stevenson as Sandra Bradshaw Eamon Geoghegan as Barman Dilys Laye as Vera Hopkins Jay Smith as Police Technician Jesse Birdsall as Harry Painter Anton Rodgers as Lord James Chetwood Barbara Leigh-Hunt as Marjorie Empson Christopher Ravenscroft as Dr. Rupert Bradshaw
