David Legeno, an actor best known for playing the werewolf villain Fenrir Greyback in Harry Potter and the Half Blood Prince and both parts one and two of Harry Potter and the Deathly Hollows, has died at the age of 50. The British actor died while hiking in Death Valley National Park in California.

Legeno’s body was discovered by two hikers on Sunday in a remote desert location west of Zabriskie Point and had to be removed by a helicopter, according to a press release from the Inyo County Sheriff’s Department.

“The remains have been identified as David Legeno, a 50-year-old United Kingdom man. 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.”

In addition to the Harry Potter films, Legeno’s other major film credits include Snow White and the Huntsman and Batman Begins. Recently, he finished production for The Last Knights starring Morgan Freeman and Clive Owen. He was also an MMA fighter and boxer and lived in southern England with his daughter. (via CNN)