The U.K.'s Telegraph reported on Friday (July 11) that the Inyo County Sheriff’s office had confirmed Legeno was discovered early Sunday morning by a pair of hikers.
The sheriff’s department dispatched a helicopter to locate and recover the body of the British actor, who was best known for playing werewolf Fenrir Greyback in the blockbuster wizard series.
“It appears that Legeno died of heat-related issues, but the Inyo County Coroner will determine the final cause of death," a spokesman for the sheriff’s department said. Authorities went on to confirm that there were no signs of foul play.
Legeno, who also appeared in 2000's "Snatch" and 2005's "Batman Begins," was set to star in the upcoming film "Sword of Vengeance."
Tom Felton, who played villain Draco Malfoy on "Harry Potter," took to Twitter to pay homage to his co-star.
Additionally, Felton posted a pictured of the two in full costume on set to Instagram with an equally heartfelt caption.
"Dave Legeno. It was always a pleasure. He was a great talent with a heart of gold and always had time for anyone. Dave was a soft, kind gentleman off screen but had the skill to be the complete opposite on screen. He taught me lots, You will be missed mate xx #DaveLegeno," he wrote.