From ITV's press release:
Rupert Penry-Jones, Phil Davis, and Steve Pemberton will appear in a second series of the critically acclaimed serial drama Whitechapel.
Whitechapel II once again draws on a set of iconic cult crimes born out of the area. After Jack the Ripper comes the gangster brutality of the Krays, and in Whitechapel II the paranoia of this era and the faded glamour of the former East End overlords will characterise the drama.
Peter Serafinowicz (The Peter Serafinowicz Show) will play DCI Cazenove and Craig Parkinson, (Lark-Rise to Candleford) will play twins, Jimmy and Johnny Kray.
Returning to write the second series are Ben Court and Caroline Ip and Sally Woodward Gentle will executive produce the series.
Woodward Gentle said: "Whitechapel II will be as sharp, intense and as visually distinctive as the first series with the gangster culture of the Krays never far away. Once again the streets of Whitechapel yield an extraordinary story and we are delighted, if slightly scared, to be going back there again."