High Quality Content by WIKIPEDIA articles! "The Snowmen" is the sixth episode and a Christmas special of the seventh series of the British science fiction television series Doctor Who. It was written by head writer Steven Moffat and was first broadcast on Christmas Day 2012 at 5.15pm on BBC1 in the UK. It stars Matt Smith as the Eleventh Doctor and Jenna-Louise Coleman as Clara Oswald, his new companion.