Michael Ausiello
March 27, 2009 AT 12:00 PM EDT

Fact: Dexter alum Mark Pellegrino (he played Rita’s abusive ex) has been cast on Lost in a pivotal role, multiple sources confirm to me exclusively.

Unconfirmed scuttlebutt: He’s playing Jacob in an off-island, circa-’70s flashback involving some very familiar faces! 

Fact: He turns up in the season finale.

Unconfirmed scuttlebutt: One of those familiar faces is *a****!

Paging Doc Jensen!

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