Mark Selwyn Hadlow is an Australian-New Zealand actor and comedian. Hadlow is perhaps best known internationally for playing the roles of Harry in King Kong and Dori, a Dwarf, in The Hobbit series.

King Kong is a 2005 epic adventure monster film co-written, produced, and directed by Peter Jackson. It is the eighth entry in the King Kong franchise and the second remake of the 1933 film of the same title, following the 1976 film. The film stars Naomi Watts, Jack Black, and Adrien Brody. Set in 1933, it follows the story of an ambitious filmmaker who coerces his cast and hired ship crew to travel to mysterious Skull Island. There they encounter prehistoric creatures and a legendary giant gorilla known as Kong, whom they capture and take to New York City.