created by Adrian Hodges based on the characters of Alexandre Dumas ; series three by Simon Allen and Simon J. Ashford ; written by Jeff Povey ; produced by Matthew Bird ; directed by Nicholas Renton ; BBC Drama production Salford
written by Tony Marchant and Damian Wayling ; co-created by Tony Marchant ; directed by Ashley Pearce ; produced by Nick Pitt ; Twenty Twenty Productions Ltd. ; Shed Media Scotland ; BBC