John Crockett

John Crockett (31 January 1918-11 October 1986 ) directed "The Wall of Lies", the fourth episode of the Doctor Who television story Marco Polo. He also directed the whole of The Aztecs.

Career
After studying art at, Crockett became an actor and director, founding the Compass Players in 1944. The touring company often performed at churches and school halls before closing in 1952. Crockett's brief television directing career saw him helm episodes of Suspense (1963) and (1964). He later taught at, a Roman Catholic school near Bath from 1969-76. (INFO: "The Warriors of Death")

Doctor Who historicals
He enjoyed his experience on historical Doctor Who episodes so much that he submitted story ideas to story editor David Whitaker. Though it's unclear whether his suggestions prompted any production, many of his ideas were in fact produced — mostly during the Hartnell era.