The Split is a British legal drama television series, written and created by Abi Morgan, that first broadcast in the United Kingdom on BBC One from 24 April 2018. The first series, commissioned in August 2016, follows the lives of the Defoe family, who all work in divorce law for the family firm, aside from eldest sister Hannah, who works for rival family law firm Noble & Hale, with their youngest daughter being a nanny. The series co-stars Stephen Mangan, Fiona Button, Annabel Scholey and Barry Atsma.