Instagram/Ryan Kiera Armstrong & Sa TV Buffy reboot star Ryan Kiera Armstrong reacts after Hulu cancels the new Slayer saga. Read her heartfelt message to fans. March 16, 2026 AceShowbiz - Buffy the Vampire Slayer revival lead Ryan Kiera Armstrong has opened up after Hulu abruptly canceled the highly anticipated reboot. The 16-year-old actress, set to portray the newest slayer in the iconic vampire-fighting saga, expressed her disappointment and gratitude in the wake of the news.