Rupert Giles

Rupert Giles is the librarian of Sunnydale High School in Buffy the Vampire Slayer, and the Watcher (teacher, guide, and general sidekick) of the Slayer, Buffy Summers. He is a book-lover, an expert on the occult, and he has a surprisingly hardcore singing voice compared to his normally gentle British tones. He gradually becomes a father-figure to Buffy and, to a lesser extent, her friends.

He is portrayed by Anthony Stewart Head.