Whedon said he understood the decision not to renew the "Buffy the Vampire Slayer" spin-off due to budget concerns, but lamented: "I thought that if a show was really good and doing really well (in the ratings), it was renewed ... I was apparently misinformed."
He said he thought the network was making a mistake by dropping the critically acclaimed series.
"I do understand the business of it," Whedon said. "But to me, when they're scrambling to hold on to their audience, their revenue, their dignity, it doesn't seem the best decision. And it's certainly not the classiest. If there's no place for quality in the equation, I don't know why we're here."
Whedon said the show's cast and crew were "stunned" when he told them the news Friday.
"Nobody saw this coming," he added.