Kris Marshall has been cast to follow Peter Capaldi as BBC's Doctor Who, according to The Mirror. Accoding to an undislosed source to the UK tabloid, "Kris Marshall has already joined the cast and will regenerate at the end of this series, not in the Christmas special."
Doctor Who returned on the BBC this past Saturday for its tenth season following the 2005 revival, in what is said to be the final season for both Capaldi and showrunner Steven Moffat. Filming was reportedly completed for the entire season on April 7.
When asked about Marshall's reported casting, a BBC spokesperson reportedly told The Mirror that "no casting decisions have yet been made on series 11."