The King's Demons

128 – *The King's Demons*
128 – The King's Demons
Doctor Who serial
Cast
	Doctor Peter Davison – Fifth Doctor;
	Companions Janet Fielding – Tegan Jovanka; Mark Strickson – Vislor Turlough; Gerald Flood (Voice of Kamelion);
	Others Anthony Ainley – The Master / Sir Gilles Estram; Gerald Flood – King John; Frank Windsor – Ranulf; Isla Blair – Isabella; Christopher Villiers – Hugh; Michael J. Jackson – Sir Geoffrey de Lacey; Peter Burroughs – Jester; Jakob Lindberg – Lutenist;
Production
Directed by	Tony Virgo
Written by	Terence Dudley
Script editor	Eric Saward
Produced by	John Nathan-Turner
Executive producer(s)	None
Music by	Jonathan Gibbs
Production code	6J
Series	Season 20
Running time	2 episodes, 25 minutes each
First broadcast	15–16 March 1983
Chronology
← Preceded by; Enlightenment	Followed by →; "The Five Doctors"

The King's Demons is the sixth and final serial of the 20th season of the British science fiction television series Doctor Who, which was originally broadcast on BBC1 on 15 and 16 March 1983. This serial introduced Kamelion, voiced by Gerald Flood, as a companion.

The serial is set in an English castle in 1215. In the serial, the alien time traveller the Master (Anthony Ainley) uses the robot Kamelion to imitate King John of England as part of the Master's plot to have the real King John overthrown and thus prevent the signing of Magna Carta.