John Bunyan was the celebrated English minister and preacher. He is best known as the author of The Pilgrim’s Progress, the bestselling allegorical tale that describes Bunyan’s own conversion process. Popular with every social class, The Pilgrim’s Progress brought Bunyan much fame and was the most characteristic expression of the Puritan religious outlook. His other works include doctrinal and controversial writings; a spiritual autobiography, Grace Abounding; and the allegory The Holy War.

Oliver Hunkin was best known as the pioneering head of the religious programmes at the BBC in the 1960s. He read theology at Oxford, served as an assistant priest at Peterborough and worked for a few years in the film industry. Oliver Hunkin helped with the creation of The Dangerous Journey, an abridged version of The Pilgrim’s Progress, by carefully selected words from John Bunyan's original timeless story to present a gripping narrative for children.