About Doctor Who Season 4, Episode 12 : The Stolen Earth

The Earth has been moved, and it's a race against time as Donna and the Doctor try to find it before the Daleks destroy everything; they head for the Shadow Proclamation and the Medusa Cascade. Meanwhile on Earth a veritable bevy of ex-companions join together to contact the Doctor and take down the Daleks. Can Captain Jack, Sarah-Jane, Martha Jones and Rose find the Doctor in time... Guest Stars: Billie Piper, Freema Agyeman, Elisabeth Sladen, Michael Brandon, Alexander Armstrong, Nicholas Briggs, Gary Milner, Amy Beth Hayes, Tommy Knight, Andrea Harris, Marcus Cunningham, Jason Mohammad, Paul O'Grady, Richard Dawkins, Eve Myles, Kelly Hunter, Gareth David-Lloyd, Bernard Cribbins, Julian Bleach, Penelope Wilton, Adjoa Andoh, Paul Kasey, Lachele Carl, John Barrowman, Jacqueline King,