Stahl, 32, is best known for his roles in "Sin City," "In the Bedroom," "Bully," "Terminator 3: Rise of the Machines" and "The Man Without a Face." The former child actor also starred in HBO's "Carnivale" and has amassed more than a dozen film and TV credits in the pass three years.
His wife filed a missing person's report Monday, stating she last saw him May 9 and fears his disappearance is drug-related, TMZ said.
Stahl's representative declined to comment on the situation, the celebrity news Web site said.
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