Doctor Who K-9 Bobble Head First-ever Doctor Who bobble head! Features K-9, the robotic canine, as an irresistible bobble head. It's sure to delight that Doctor Who fanatic in your life! This first-ever Doctor Who bobble head spotlights K-9, the well-liked robotic canine from the long-running British sci-fi TV series. The irresistible 7-inch scale resin bobble head is sure to delight that Doctor Who fanatic in your life! Ages 14 and up.