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
written by Julia Gilbert, Matt Thomas, Chris Niel, Chris Murray, Maria Ward ; produced by Charles Palmer ; directed by Matt Carter, James Larkin, Roberto Bangura, Audrey Cooke ; a Free@Last TV & Company Pictures production ; co-produced by Acorn Media Enterprises, a division of AMC Networks
Kudos Productions Ltd. ; in association with BBC America ; written and created by Abi Morgan ; produced by Ruth Kenley-Letts ; episode directors, Coky Giedroyć, Harry Bradbeer, Jamie Payne
2 entertain ; British Broadcasting Corporation ; BBC Worldwide Ltd. ; producers, Kevin Bishop, Nick Symons ; [written] by Stephen Fry & Hugh Laurie ; director, Kevin Bishop
BBC ; writers, Paul Logue, Paul Matthew Thompson, Martha Hillier ; directors, Paul Gay, Lawrence Gough, Carolina Giammetta, Declan O'Dwyer ; producer, Will Nicholson
written by Jack Lothian, Richard Stoneman, Julian Unthank, Colin Bateman, and Andrew Rattenbury ; series created by Dominic Minghella ; produced by Philippa Braithwaite ; directed by Nigel Cole and Stuart Orme ; Buffalo Pictures Production in association with Homerun Film Productions and Jet Stone Productions Limited