Speculation is rife for who will be taking on the role of Doctor Who as Jodie Whittaker is due to step out of the Tardis for good later this year.
David Tennant, who played the Time Lord from 2005-2010 in the BBC series, has become a bookies' favourite to reprise his role and become the 14th Doctor.
The Scottish actor famously played the Tenth Doctor and was hugely popular with viewers, before passing the baton to The Crown's Matt Smith.