created by Paul Marquess ; written by Jake Riddell, Sally Tatchell, Sarah-Louise Hawkins, Claire Fryer ; produced by Mary Hare ; directed by Fiona Walton, Sean Glynn ; a PGM TV production
A Tiger Aspect and Lookout Point production for the BBC, A BBC America Co-production ; produced by Stephen Smallwood ; directed by Tom Shankland, Christopher Menaul, Kieron Hawkes, Andy Wilson
Tiger Aspect Productions ; Lookout Point ; produced with the participation of the Irish Film Board in association with BBC Worldwide ; a BBC America co-production ; created by Richard Warlow ; produced by Stephen Smallwood
a PGM TV Production, produced in association with Acorn Media Enterprises and ZDF Enterprises ; created by Paul Marquess ; written by Paul Marquess, Jake Riddell, Sally Tatchell, Sarah-Louise Hawkins ; produced by Mary Hare ; directed by Craig Pickles
a Tiger Aspect and Lookout Point production in association with Brown Bear Films for Amazon and BBC Worldwide ; BBC America co-production ; produced by John Rushton, Joe Donaldson ; written by Rachel Bennette, Justin Young, Matt Delargy, Toby Finlay ; directed by Kieron Hawkes, Luke Watson, Anthony Byrne ; written and created by Richard Warlow
a WTTV Working Title Television co-production with BBC America in association with NBC Universal International Studios for the BBC ; executive producers, Tim Bevan, Eric Fellner, Juliette Howell, Tom Rob Smith ; created and written by Tom Rob Smith ; produced by Guy Heeley ; directed by Jakob Verbruggen