She was the top-billed star of the Wizard World conventions in Toronto and Anaheim -- and briefly the victim of a case of mistaken identity with Warren Ellis. But now Eliza Dushku, the Joss Whedon mainstay who starred in Buffy the Vampire Slayer and Dollhouse, has quietly been dropped from the guest lists of both shows.

Is this a victory for the shows' Con War rivals, Fan Expo (the same city as Toronto) and Reed's Chicago Comic and Entertainment Expo (the same weekend as Anaheim), a sign that Wizard's rapid convention-circuit expansion isn't making it any easier to attract big-name talent, or just schedule churn?