Sterling Beaumon, Mare Winningham

Sterling Beaumon must have a thing for playing creepy killers.

The 15-year-old actor, who played a young Benajmin Linus on Lost, is set to guest-star on Criminal Minds, TVGuide.com has learned exclusively. Beaumon will play Jeremy, a young boy who is suspected of killing families in the Midwest.

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Mare Winningham (ER, Grey's Anatomy) also guest-stars in the episode as Nancy Riverton, a woman who takes in Jeremy.

Beaumon, who recurred in Lost's time-tripping fifth season, played a young Ben, before he grew up to be the deadly leader of The Others, as portrayed by Emmy winner Michael Emerson. Beaumon has also appeared on ER and Bones.

Criminal Minds returns Wednesday, Sept. 22 at 9/8c on CBS. Beaumon's episode is slated to air in October.