Reality player Joey Kovar, who appeared on "Real World: Hollywood" and later "Celebrity Rehab," was found dead on Friday.
The 29-year-old, whose full name is Joseph E. Kovar, was discovered at a friend's home near Chicago, TMZ first reported. Chicago-Ridge Police confirmed the death to Show Tracker.
No foul play is suspected and police are conducting a death investigation. He was transported to Cook County Medical Examiner's Office for an autopsy.
Kovar had battled drug abuse, and during his 2008 stint on "Real World," he entered rehab — cameras showed his castmates visiting him and his eventual return to the house, where he would struggle to remain sober.