An actor known for his work in the "Harry Potter" movies has been found dead. The U.K. publication The Mirror reports that English actor, boxer and mixed martial artist Dave Legeno was found dead Sunday in the desert in Death Valley, Calif. He apparently died while hiking.

"He was discovered by a hiking group in a remote wash below Manly Beacon, west of Zabriskie Point in Death Valley on Sunday," the story reports. "David, 50, is believed to have died of heat-related issues and there were no signs of foul play."

Legeno played the werewolf Fenrir Greyback in " Harry Potter and the Half-Blood Prince" and in Parts 1 and 2 of "Harry Potter and the Deathly Hallows."

The London-born actor was reportedly an expert in boxing, wrestling, judo and Brazilian Jiu-jitsu. He launched a professional MMA career at age 42, going by the nickname the Enforcer.

"David worked as a bouncer and wrestler and his nickname was Lone Wolf before he took up boxing and started working in the movie industry," the story notes. He had his first major film role in the Guy Richie movie "Snatch," released in 2000.

Legeno has a steady stream of work in film and television from that point on, including roles in the features "Batman Begins" and "Centurion," along with work in a number of U.K. TV series, including "EastEnders" and "Emmerdale."

Dave Legeno