The Doctor and his companions arrive at a medieval joust and are surprised to be greeted warmly by King John, who calls them his demons. But when a young nobleman returns, having just left King John in London, the Doctor realises that this king must be an impostor! Then the Master makes an appearance and the Doctor's worst fears are confirmed...
Peter Davison
as The Doctor
Janet Fielding
as Tegan Jovanka
Mark Strickson
as Vislor Turlough
Gerald Flood
as Voice of Kamelion/King John
Anthony Ainley
as The Master/Sir Gilles Estram
Frank Windsor
as Ranulf
Christopher Villiers
as Hugh
Isla Blair
as Isabella
Michael J. Jackson
as Sir Geoffrey de Lacey
Peter Burroughs
as Jester
Jakob Lindberg
as Lutenist
