Lost Actor Joins Pilot

"sister" in quotes leads me to believe that gellar is playing both characters who are in fact...one character.
or that her "sister" is a cyborg or in fact her twin brother. the show won't last. the curse of the lost alums
continues.

anybody else think all these posts about pilot castings are pointless? most of these shows won't see the
light of day, so does it really matter who is in them?