"Next of Kin" is a two-part episode of the British medical drama Casualty that served as the 15th and 16th episodes of the show's twenty-sixth series, and the 796th and 797th episodes overall. The first part premiered on 3 December 2011, and the second on 10 December 2011 on BBC One and BBC One HD in the United Kingdom. Both parts were directed by Simon Massey; part one was written by Patrick Homes and part two by Sally Abbott. "Next of Kin" marks Casualty's final episode to be filmed at their Bristol studios, where the show has been filmed since its conception in 1986, after the BBC decided to move the show to a new studio in Cardiff as part of their plans to expand production outside of England. The move received much opposition from multiple sources, including the cast and parliament.