ITV Studios and Masterpiece ; series producer Dominic Barlow ; producer, Jeremy Piven ; directed by Robert Del Maestro, Bill Anderson, Fraser MacDonald, Joss Agnew, and Rob Evans ; written by Helen Raynor, Kate O'Riordan, Matt Jones, James Payne, Ben Morris, and Hamish Wright ; created by Andrew Davies ; developed by Kate Brooke
a Ruby Television production in association with AL Films for BBC, co-produced with WGBH Boston ; screenplay by Paula Milne and Sarah Williams ; produced by Joanna Anderson, Vicky Licorish, and Grainne Marmion ; directed by John Alexander