Matthew Fox is an American Episcopal priest and theologian. Formerly a member of the Dominican Order within the Roman Catholic Church, he is now a member of the Episcopal Church. Fox was an early and influential exponent of a movement that came to be known as Creation Spirituality. He is the author of many books.

Rupert Sheldrake, a biologist and author, is best known for his theory of morphic fields and morphic resonance, which leads to a vision of a living, developing universe with its own inherent memory. He worked in developmental biology at Cambridge University, where he was a Fellow of Clare College. He was then Principal Plant Physiologist at the International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), in Hyderabad, India. From 2005 to 2010 he was Director of the Perrott-Warrick project, funded from Trinity College, Cambridge.