written by Tony Marchant and Damian Wayling ; co-created by Tony Marchant ; directed by Ashley Pearce ; produced by Nick Pitt ; Twenty Twenty Productions Ltd. ; Shed Media Scotland ; BBC
IFC Films, Motion Picture Capital, The Welsh Government and Ffilm Cymru Wales present ; a Reliance Entertainment Productions 6, Mad As Birds and Ella Communications production ; in association with West Madison Entertainment ; produced by Andy Evans, Sean Marley, Ade Shannon, Laure Vaysse, Sarah Townsend ; story by Eddie Izzard and Celyn Jones ; screenplay by Celyn Jones, Eddie Izzard and Andy Goddard ; directed by Andy Goddard
Eagle Rock Film Productions Limited in association with the Independent Film Channel ; a Bill and Ben Production ; producers, Bill Jones and Ben Timlett ; directors Bill Jones, Alan G. Parker and Ben Timlett
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