Dan Stevens is said to be in talks to star in the WikiLeaks film.
The Downton Abbey star is believed to have landed a part in Bill Condon's untitled upcoming biopic about controversial WikiLeaks founder Julian Assange, according to Variety.
Cumberbatch is attached to star as Assange, while Stevens is apparently set to play a hacker who comes to work for the whistleblowing website.
The film will be directed by Bill Condon and production begins early next year.