may be ready to say goodbye
to "Gossip Girl
," but another actress is about to say hello.Andrea Gabriel, best known for playing Sayid's love interest Nadia on ABC's "Lost," will join the cast of the CW teen drama for its sixth and final season, according to The Hollywood Reporter
. Gabriel, 34, will take on a recurring role as a businesswoman from Dubai (though no word on how her character will fit into the Upper East Side ...