Anthony Stewart Head (born February 20, 1954) is a British actor best known as his role as Rupert Giles in Buffy the Vampire Slayer, and more recently as King Uther in Merlin. He also had a short role as Will's terrible dad in The In Betweeners.He also has released several albums(Music for Elevators in 2002, and Staring At The Sun in 2014), played Nathan in the Rock Opera Repo! The Genetic Opera and served up glorious sides of ham as the evil guardian Mr Gently Benevolent in Radio 4's Bleak Expectations. He also played Michael the Prime Minister in sketch show Little Britain ("It's not the real prime minister of course, it's just that bloke from Buffy"), and appeared in the Doctor Who episode "School Reunion" as that episode's villain, Mr. Lucas Finch. In Big Finish Doctor Who, he played Large Ham Grayvorn in the Excelis story arc. He once again played a Doctor Who villain as the voice of Space Pirate Balthasar in The Infinite Quest. He occasionally turns up in Cabin Pressure as Douglas's old friend Herc Shipwright. More recently, he played the Mad Scientist Paracelsus in Warehouse 13, obsessed with immortality.Long before he was Giles, he was most recognisable for being half of an insufferably smug Will They or Won't They? couple flirting over instant coffee in commercials for Nescafé and its American equivalent Taster's Choice.Oh, and he played Dr. Frank-N-Furter in some performances of The Rocky Horror Picture Show.He has a brother who is a veteran of musicals on the West End, named Murray Head. Murray is better known for his performances in the original Jesus Christ Superstar and his biggest chart hit, "One Night in Bangkok" (from a far less successful musical called Chess).