A teaser trailer for the new season of the British series \"Doctor Who\" shows the titular time-traveler confronting dinosaurs and Daleks on a spaceship. \"Dinosaurs. On a spaceship!\" Doctor Who portrayer Matt Smith is heard saying in the 90-second-long, Season 7 clip, which also shows him riding a triceratops. The promotional video debuted on BBC Thursday and features Arthur Darvill as Rory, Alex Kingston in a returning role as River Song and Rupert Graves as an adventurer, The Daily Telegraph said. The new season is to begin airing in the United Kingdom this fall.