Former EastEnders star Nigel Harman has joined the cast of Downton Abbey for the fourth series.

The Hollywood Reporter says that Harman, who played Dennis Rickman in EastEnders, will play a visiting valet called Green in Downton Abbey.

Harman is one of a number of new Downton Abbey faces, with Tom Cullen (Lord Gillingham), Harriet Walter (Lady Shackleton), Kiri Te Kanawa (who the Hollywood Reporter says will play "a singing house guest"), Joanna David (the Duchess of Yeovil) and Julian Ovenden (Charles Blake) all set to appear in season four.