Alfie Allen and Mark Addy have been cast in 'White House Farm'.
Alfie Allen
The 'Game of Thrones' star - who played Theon Greyjoy in the HBO fantasy epic - and his former co-star, who portrayed King Robert Baratheon, will be reunited on the small screen in the upcoming ITV true crime drama, which is based on killer Jeremy Bamber.
Alfie will play Brett Collins, one of his friends, while Mark has been cast as detective Stan Jones, who is convinced of Bamber's guilt from the beginning.
Speaking of the latest additions to the ensemble, an insider told The Sun's Bizarre TV column: "Signing Alfie and Mark means the cast is packed with a long line of big British actors."
The show tells the real life story of Bamber, who murdered five members of his family at their Essex farmhouse in 1985.
It was recently revealed that 'Save Me' star Stephen Graham has been cast as police officer DCI Thomas 'Taff' Jones in the thriller.
A TV insider said: "The role of Taff isn't a straightforward one - it's a complicated part Stephen can really get his teeth into."
The killings saw couple Nevill and June Bamber shot inside their home along with their adoptive daughter Sheila Caffell, and Sheila's six-year-old twin sons, Daniel and Nicholas Caffell.
Prince Harry's ex Cressida Bonas will play Sheila, who police first suspected had fired the gun shots and then killed herself.
However, her brother Bamber - who will be played by Freddie Fox - was jailed for the murders in October 1986.
Tagged in Alfie Allen Cressida Bonas