Armstrong has been cast in a lead role in the pilot opposite returning star Sarah Michelle Gellar. The pilot was originally announced at Hulu back in February. Exact plot details are under wraps, but sources previously said the pilot will focus on a new slayer with Gellar appearing in a recurring role as Buffy.

On Thursday, Ryan Kiera Armstrong's addition to the cast of the upcoming "Buffy the Vampire Slayer" reboot was announced. A tearful Armstrong let out an emotional "yes" to Sarah Michelle Gellar's offer to join the production.