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
series created and written by Heidi Thomas ; written by Louise Ironside, Carolyn Bonnyman, Andrea Gibb, Debbie O'Malley, Lisa Holdsworth, Amy Roberts & Loren McLaughlan ; produced by Ann Tricklebank ; directed by Syd Macartney, Kate Saxon, David O'Neill, Christiana Ebohon, Kate Cheeseman ; Neal Street Productions for BBC and PBS
a Neal Street Production for BBC and PBS ; producer, Ann Tricklebank ; series created and written by Heidi Thomas ; directors, Juliet May [and four others]
Agatha Christie Ltd. ; ITV Global Entertainment ; screenplays by Clive Exton ... [and others] ; directed by Edward Bennett and Renny Rye ; produced by Brian Eastman
Agatha Christie Ltd. ; directed by Andrew Grieve, Stephan Whittaker, and Ross Devenish ; produced by Brian Eastman ; screenplays by Clive Exton, William Humble
a Playground production for BBC and StarzOriginals in association with City Entertainment and Kippster Entertainment ; produced by Laura Hastings-Smith ; written for television by Kenneth Lonergan ; directed by Hettie MacDonald
written & created by Abi Morgan ; produced by Ruth Kenley-Letts ; directed by Sandra Goldbacher, Catherine Morshead, Jamie Payne ; a Kudos Film and Television production for BBC
series created by Heidi Thomas ; produced by Ann Tricklebank ; written by Heidi Thomas, Jonathan Harvey, Debbie O'Malley, Joe Ainsworth, Andrea Gibb [and others] ; directed by Ann Tricklebank, David O'Neill, Noreen Kershaw, Afia Nkrumah, Thomas Hescott ; a Neal Street production for BBC and PBS
British Broadcasting Corporation ; Turner Entertainment Co. ; an AOL Time Warner Company ; produced and dramatised by Donald Wilson ; directed by David Giles and James Cellan Jones