Lost fans, get ready for a mini-reunion on Person of Interest (Thursdays 9/8c on CBS), as Mark Pellegrino (the enigmatic Jacob from the fan-favorite drama) joins Harold Finch (series star and fellow Lost alum Michael Emerson) in an upcoming episode (airdate to be announced).

Fans at New York Comic Con got the intel first during the Person of Interest panel session today with cast members James Caviezel, Michael Emerson, Taraji P. Henson, Kevin Chapman and guest star Amy Acker, when creator/executive producer Jonathan Nolan announced that Mark Pellegrino would be guest starring in an upcoming episode of the highly anticipated drama as an edgy and charming head of a popular publishing empire.

Mark Pellegrino was most recently seen on Warner Bros. Television's new hit action-adventure series Revolution (Mondays 10/9c NBC), produced - like Lost and Person of Interest - by Bad Robot Productions.