Cult
WENN
The X Factor judge has yet to sign a deal with the show but could play "a big part" in the fifth series, which is currently being filmed in Wales. An insider told the newspaper: "If she can find the time, a part will be written for her."
A BBC spokesperson refused to deny the speculation, saying: "The BBC will not be commenting on casting or storyline speculation for the new series of Doctor Who."
It was previously confirmed that Alex Kingston is reprising her role as River Song for a two-part story in the new run.
> Tube Talk: Steven Moffat talks 'Who' series five
Related Stories
Tube Talk
'The Following': Most exciting Fox showThe Kevin Bacon thriller tops our poll on Fox's new series for 2012.
TV Interviews
Apprentice Gabrielle 'was easy target'Digital Spy talks to Gabrielle Omar about being too nice for the show.
TV Ratings
'Revenge' kicks off with 750,000 viewersThe series premiere of US import Revenge draws decent numbers.
TV Recaps
'Homeland' finale: Have your sayHomeland's incredible finale is reviewed by Digital Spy. Share your verdict.
