Digital Spy reports this morning that Matthew Lewis has been cast in series 4 of Ripper Street. He will be playing a policeman of unknown name, but we will keep you updated as news develops.

“From our new studio set in Ireland, it has been a delight to watch this cast reunite and grow,” series creator Richard Warlow said. “As these new characters’ lives take shape on the page, it is a daily inspiration to know that they will be brought to life by the most magnificent troupe of actors Ripper Street has yet assembled.”

Series four will premiere exclusively on Amazon Prime Instant Video – with a broadcast date still TBC. The third series is currently airing on Friday nights at 9pm on BBC One. For fans who want to catch up on the series you can watch it via the links below:

• Series 1 – Amazon Instant Video, DVD/BluRay
• Series 2 – Amazon Instant Video, DVD/BluRay
• Series 3 – Amazon Instant Video, DVD/BluRay

A description of the first series is as follows:

Haunted by the failure to catch London’s most evil killer, Jack the Ripper, Inspector Edmund Reid now heads up the notorious H Division – the toughest police district in the East End. Charged with keeping order in the blood-stained streets of Whitechapel, Reid and his men find themselves fighting to uphold justice and the rule of law; but always in the background lurks the fear of the Ripper – is he back for another reign of terror? Rich episodic storylines meld with the intrigue of a criminal underworld festering on the hard streets of Victorian London, following the battle of the men whose job it is to bring the law to the lawless.

Thanks to our friends over at Matthew-Lewis.com