This was originally broadcast on March 30, 2007. The cast appearing are David Tennant, John Barrowman (Captain Jack Harkness), Noel Clarke (Mickey Smith), Camille Coduri (Jackie Tyler), Tracy-Ann Oberman (Yvonne Hartman in "Army of Ghosts" and "Doomsday"), Andrew Hayden Smith (Jake in "Rise of the Cybermen", "The Age of Steel" and "Doomsday"), Nick Briggs (voice of the Daleks and the Cybermen), Claire Rushbrook (Ida Scott in "The Impossible Planet" and "The Satan Pit"), and K-9.
After "The Weakest Link" are some outtakes from the show and David Tennant's Video Diary featuring a behind the scenes look at "The Weakest Link".
Does the Doctor win or is he the weakest link? Watch and find out.