Cast
Robert Hardy
Doctor Sir Robert Baldick
Julian Holloway
Thomas Wingham
John Rhys-Davies
Caleb Selling
Reginald Marsh
Charles Aldington
Barry Andrews
Seth Marden
Paul Humpoletz
Walter Sturry
Ron Welling
Daniel Pluckly
Directing
Cyril Coke
Director
Writing
Terry Nation
Writer
Production
Anthony Coburn
Producer