Grasping the essence of Anthony Head’s magnetism boils down to knowing the tale of two Ruperts.
There’s Rupert Giles, the tweedy Sunnydale High School librarian who mentored Buffy Summers on “Buffy the Vampire Slayer.” As the Slayer’s Watcher, Giles keeps Buffy battle ready, advises her and occasionally gives her a fatherly shoulder to cry on. He’s also an emotional anchor. Without him, as Buffy. Willow, Xander and the rest of the Sunnydale Scoobies discover in the show’s sixth season, the world starts to crumble around them.
