Biography: ​From Wikipedia, the free encyclopedia.   Heydon Prowse (born 1981) is a British actor who played the role of Colin Craven in the 1993 Agnieszka Holland-directed adaptation of the Frances Hodgson Burnett novel The Secret Garden. The Secret Garden is Prowse's only film credit to date. He is now an editor of the online magazine http://dontpaniconline.com where he posts his political satire videos. Description above from the Wikipedia article Heydon Prowse, licensed under CC-BY-SA, full list of contributors on Wikipedia.