Gerald Flood
Gerald Flood (born 21 April 1927 in Portsmouth, Hampshire; died 12 April 1989) played King John and voiced Kamelion in the Doctor Who television story The King's Demons. Although technical problems with the Kamelion robotic prop made it impossible for Gerald Flood to appear regularly on Doctor Who as a voice actor for Kamelion, he did reprise the role in Planet of Fire and in a cameo in The Caves of Androzani. He also played Kamelion in The Awakening although the scene was cut from television.
Gerald Flood had been the star of the Pathfinders serials, Sydney Newman and Malcolm Hulke's previous attempt at a family-oriented science-fiction show. He also played Sir Richard Flashman in the BBC's popular 1971 television serial Tom Brown's Schooldays. He died from a heart attack shortly before his 62nd birthday.