a Mammoth Screen Production for BBC and Masterpiece ; produced by Eliza Mellor ; written and created for television by Debbie Horsfield ; directed by Ed Bazalgette and William McGregor
Left Bank Pictures ; Story Mining & Supply Co. ; Tall Ship Productions ; Sony Pictures Television ; produced by David Brown ; executive producer, Matthew B. Roberts ; executive producers, Ronald D. Moore [and six others] ; developed by Ronald D. Moore