Legeno's body was found by two hikers on Sunday and had to be removed by helicopter. "It appears that Legeno died of heat-related issues, but the Inyo County Coroner will determine the final cause of death. There are no signs of foul play," according to a statement from law enforcement.
Legeno played the werewolf Fenrir Greyback in Harry Potter and the Half Blood Prince, as well as Deathly Hollows Part 1 and 2. He was also an MMA fighter and boxer.
Legeno is survived by a daughter, with whom he lived in England.