Dodo first appeared on our screens in the 1966 adventure The Massacre of St Bartholomew’s Eve alongside William Hartnell (1st Doctor) and Peter Purves (Steven Taylor). She featured up until The War Machines in the same year.
Sophie Holt is the 4th companion to be cast for the docudrama alongside Jamie Glover (Ian Chesterton), Jemma Powell (Barbara Wright) & Claudia Grant (Susan).
An Adventure in Space and Time is scheduled to air in the Autumn with iconic scenes being filmed daily including; The Daleks on Westminster Bridge & the first TARDIS scene! And they are rumoured to also film the iconic first regeneration from Hartnell to Troughton.