For those of us who came of age in the late 90s and early 00s, Buffy the Vampire Slayer was an era-defining and strangely relatable show (vampires aside). Two decades on, Buffy is still as popular as ever, with new generations falling in love all over again with the characters and storylines. Buffy ended in 2003 after seven seasons, but the show is now back in the headlines for the saddest of reasons as the cast is mourning the loss of Anthony Head, who played Giles.