Get ready for a Lost reunion on Person of Interest. Mark Pellegrino is set to guest-star on the Michael Emerson drama.

Pellegrino, who played Jacob, the mysterious island oracle, to Emerson’s blind devotee Ben on the ABC drama, will take charge once again as…

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• Lost
• Supernatural
• Eric Kripke
• Mark Pellegrino
• Michael Emerson
• Person of Interest
• Revolution