Passionate Productions for BBC ; produced for NOVA by Holt Productions, LLC ; WGBH Boston ; produced and directed by Jemima Harrison and Sarah Holt ; writer for the BBC, Jemima Harrison ; executive producer for the BBC, Richard Klein ; senior executive producer, Paula S. Apsell
Columbia TriStar Television, Inc. and CBS Worldwide Inc. ; Hanley Productions in association with CBS Productions and Sony Pictures Television ; producers, Rock Reuben, Jenna Bruce ; produced by Annette Sahakian Davis ; directed by Rob Schiller, Ken Whittingham (one episode)
Atlantique Productions and EOS Entertainment ; in co-production with Canal+ ; producers, Michael Schwarz, Petr Moravec ; created by Tom Fontana ; written by Tom Fontana [and 9 others] ; directed by Dearbhla Walsh [and 3 others]
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