 'Harry Potter' Actor Dies Hiking in Death Valley 
 
 Dave Legeno Dead -- 'Harry Potter' Actor Dies While Hiking in Death Valley 
 
 EXCLUSIVE 
 
 -- Inyo County officials tell us ... an autopsy was performed and the cause of death is heat stroke.One of the villains from themovies -- British actor-- died while hiking in Death Valley ... TMZ has learned.Legeno's body was found by a pair of hikers on Sunday in an area so remote ... a CHP helicopter had to be called in to remove it.50-year-old Legeno played the werewolf Fenrir Greyback in the 'Potter' movies. "The Inyo County Sheriff's Department (in CA) tells TMZ it appears Legeno died of heat related issues ... and may have been dead for 3-4 days before his body was discovered. Dave was also a pretty successful MMA fighter in the UK ... with a professional record of 4-3.
– He was a 6-3, 250-pound former mixed-martial arts fighter who went on to play a villainous werewolf in the Harry Potter movies, but even David Legeno was no match for Death Valley. The 50-year-old actor was found dead in the place known to be the hottest on Earth last weekend, reports the Los Angeles Times. Authorities don't suspect foul play. TMZ reports that Legeno had been hiking and that the autopsy attributes the cause of death to heat stroke. He is best known for playing Fenrir Greyback in the Potter films, though he also appeared in the movies Snow White and the Huntsman and Snatch, notes E! Online.