Guest Stars Anthony Bate as Dr. Charles Sardon Richard Owens as Shoni Morgan Annette Andre as Carmen Grant Alex Scott as Armstrong David Garfield as First Local Peter Lawrence as Third Local Mervyn Johns as Dr. Rhys Davies Glyn Houston as Dylan Williams Talfryn Thomas as Owen Thomas Heather Seymour as Mary Williams Anthony Blackshaw as The Guard Dafydd Havard as Second Local Reg Pritchard as Fourth Local
