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****!
source : Ew