By Amber Goodhand - Breaking Celebrity News News Editor

Terminator 3 star Nick Stahl went missing in May, was found in a rehab treatment center — and now reports have surfaced that the actor is once again missing.

The actor checked out of rehab early against doctors' advice and his wife, Rose Murphy Stahl, and family are worried about him.

"He's been missing for four days," Rose told E! News on Monday. "But I don't want to comment any further."

Nick, 32, was last seen in downtown Los Angeles last week after checking out of rehab.

"Now he's disappeared. We can't find him anywhere. He has not made contact with anyone. We are all just desperately looking for him," a source told E!.

"Everyone just wants him to come home. It's a terrible situation. We are searching, but we've had no solid leads."

The first time Nick went missing, Rose feared the worst saying, "He could have overdosed, that's one thought. And I'm wondering if there will be a body recovered."