Nick Stahl

Nick Stahl has checked out of rehab, reports E! News.

According to a source, Stahl left the center against doctors' advice.

Terminator 3 star Nick Stahl reported missing

"He just didn't want to be there anymore...It is very sad. He is still struggling and has yet to hit rock bottom. Everyone is extremely worried about him," the source told E! News.

The Terminator 3 star went missing in May before he checked into the facility almost a month ago.