"Frontios buries its own dead", or so the saying goes. The Doctor, Turlough and Tegan are forced into landing on the remote planet of Frontios, a human colony where deaths go unaccounted for. What lies beneath the surface, dragging its victims down?
Peter Davison
as The Doctor
Janet Fielding
as Tegan Jovanka
Mark Strickson
as Vislor Turlough
Jeff Rawle
as Plantagenet
Peter Gilmore
as Brazen
Lesley Dunlop
as Norna
William Lucas
as Range
Maurice O'Connell
as Cockerill
Raymond Murtagh
as Retrograde
Richard Ashley
as Orderly
Alison Skilbeck
as Deputy
John Gillett
as The Gravis
