Buffy The Vampire Slayer star Nicholas Brendon has shared his thoughts on co-star Charisma Carpenter’s recent allegations involving the show’s creator Joss Whedon.The Cordelia Chase actress alleged that Whedon created “hostile and toxic work environments” and claimed that he was responsible for “ongoing, passive-aggressive threats” against her.A number of Buffy stars have since spoken out in support of Carpenter, including Sarah Michelle Gellar, who said she “doesn’t want to be forever