The Doctor has faced a whole galaxy full of formidable foes. David Tennant and a host of stars including John Barrowman, Derek Jacobi, Zoe Wannamaker, Freema Agyeman and Sarah Parish look through the greatest moments of his deadliest enemies.

David Tennant, Billie Piper, Catherine Tate, Freema Agyeman and John Barrowman go through the greatest moments of the Doctor's finest companions.

David Tennant, John Barrowman, David Morrissey and the League of Gentlemen's Mark Gatiss look back at the Time Lord's greatest moments.