We notice that your web browser is out-of-date. For the best experience on AXS.com please consider upgrading to one of the following: We see your preferred language is English , would you like to stay on English or switch to English ? Could there be a “Buffy the Vampire Slayer” reunion coming up at this year’s Denver Comic Con ? It just so happens to be the 20th anniversary of the series, and so far Buffy alum James Marsters , Juliet Landau , Eliza Dushku , and Clare Kramer are all confirmed guests for the Denver big pop culture party.