Tamzin Outhwaite will star in the second series of 'The Tower'.
The former 'EastEnders' actress is "thrilled" to have joined the cast of the ITV drama series - which firs aired last year and starred the likes of Emmett Scanlan, Gemma Whelan and Jimmy Akingbola - and has already started filming scenes on location in Liverpool.
A source told the Daily Star Sunday newspaper: "Tamzin is thrilled to be part of such a fantastic show.
"The character she is playing is brilliant, so she jumped at the chance to do it."
While it is not yet known who the 51-year-old star will be playing, she's at the heart of the action as she has already got involved with her first stunt.
The insider added: "Tamzin has been thrown in at the deep end. She shot some really big scenes on location.
"There were police cars everywhere and it was all very dramatic. It's going to look great on screen."
It was confirmed earlier this month that 'The Tower' will be back for a second season, subtitled 'Death Message'.
ITV's head of drama, Polly Hill, said: "It's a real thrill to be recommissioning The Tower with an excellent cast and script from Patrick Harbinson and the team at Mammoth Screen.
"The characters, brilliantly created by novelist Kate London, certainly resonated with our audience who are keen to learn what happens next."
The show will see Gemma's DS Sarah Collins transferred to Homicide Command, where she is asked to re-open the case of a missing school girl who disappeared on the day of Princess Diana's funeral in 1997, while DI Kieran Shaw (Scanlan) has Lizzie Adama (Tahirah Sharif) and Arif Johar (Michael Karim) investigate a domestic violence complaint about Mark (Charley Palmer Rotwell), who has been accused of beating his partner Georgina (Rosa Coduri) and terrorising their daughter:
A synopsis for the new series teased: ""Lizzie persuades Georgina to tell the truth about what Mark has done to her, enabling Lizzie and Arif to arrest him. However, once the case gets to court, Lizzie finds herself cross-examined on the stand, leaving the whole case on a knife-edge.
"Sarah knows that Fedden has handed her an impossible challenge, but she throws herself into it with typical determination and thoroughness. And, gradually, perhaps helped by the fact that she too was a teenager of Tania's age back in 1997, she begins to uncover clues that previous investigations had overlooked."