Thomas & Friends is a children's television series about the engines and other characters working on the railways of the Island of Sodor, and is based on The Railway Series books written by the Rev. W. Awdry. This article lists and details episodes from the twelfth series of the show, which was first broadcast in 2008. This series was narrated by Michael Angelis for the UK audiences, although Michael Brandon narrates the episodes for the US audiences. Most episodes in this series have two titles: the original titles from the UK broadcasts are shown on top, while the American-adapted titles are shown underneath.