The 'Americans' star has been given a lead role in an upcoming BBC period drama called 'Death Comes to Pemberley', which is adapted from the Pride and Prejudice sequel written by PD James, reported Daily Star.
'Downton Abbey' star Stevens was said to be in competition for the part, along with Redmayne, Dancy and 'Thor' actor Tom Hiddleston.
Rhys said he is looking forward to putting his own spin on the character, and hopes he won't be compared to Oscar-winner Colin Firth, who played Mr Darcy in a famous BBC adaptation of the Jane Austen classic.
The female lead of Elizabeth Bennet will be played by Anna Maxwell Martin. Filming on 'Death Comes to Pemberley' is due to begin over the summer.