The Tenth Doctor comic stories is a wide range of adventures featuring the tenth incarnation of the Doctor, the Time Lord protagonist of the popular sci-fi series, Doctor Who. The range had the unprecedented claim of appearing in four regularly published titles: the long established Doctor Who Magazine, the more recently launched Doctor Who Adventures, aimed at a younger audience, the magazine (a title used to support the sale of an expanding number of collectable trading cards that accompany the magazine or could be purchased separately), and Doctor Who, a US monthly title launched in 2009. In 2010, the comic stories passed onto the Eleventh Doctor.