The "Entourage" cast member is to appear in three episodes as Sancia, the beautiful and seductive Neapolitan princess who marries the pope's youngest son Joffre, played by Aidan Alexander, even though she has her eye on another Borgia brother, Showtime said in a release Wednesday.
Jeremy Irons plays Pope Alexander in "The Borgias," which is set in Italy during the Renaissance. The show is to debut in Spring 2011.
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