Somebody get this guy a milk carton. Troubled actor Nick Stahl is missing for the second time in two months, according to his wife Rose Murphy. The former child actor was also missing for several days last May before reappearing to announce he was checking into rehab. Stahl left rehab last week against doctor's orders, and hasn't been seen since Thursday night. "He's been missing for four days," his wife confirmed. An insider said hasn't contacted anyone since, and all his friends are "desperately looking for him." The HBO Carnivale star was last seen walking around Skid Row in Los Angeles.