Sid Rawle, a British campaigner for peace and land rights, free festival organiser, and a former leader of the London squatters movement known as "The King of the Hippies" by the British press portrays the main Ranter.
Armour used was actual armour from the 1640s, borrowed from the Tower of London.
Novelist Marina Lewycka, best known for her 2005 debut 'Short History of Tractors in Ukrainian', acted as a language consultant on the film, advising the writer-directors on the English of the time.