Series 32 will be the thirty-second series of Casualty and will commence airing in 2017. The changes in the cast prior to the 32nd series are only partially known so far, with only a few cast members confirmed to be returning. They are listed below. Filming for the series' first episode began in April 2017, and will air later on in the year. The series was officially announced in August 2016, when executive producer of series 31, Oliver Kent, said that the storyline of series 31 was already known and the team knew exactly what they were going into series 32 with.