Episode Title: Human Nature

Duration: 45 minutes

Written by: Paul Cornell

Directed by: Charles Palmer

Transmission Date: 26th May 2007

Ratings: 7.7 million

Synopsis: It's 1913 in England, and an ordinary schoolteacher called John Smith dreams of adventures in time and space and a mysterious blue box, as Russell T Davies' Doctor Who continues. But, when lights in the sky herald the arrival of something strange and terrible, Smith's maid, Martha, has to convince him that he alone can save the world.

Cast List: The Doctor/John Smith - David Tennant
Martha Jones - Freema Agyeman
Joan Redfern - Jessica Hynes
Jenny - Rebekah Staton
Tim Latimer - Thomas Sangster
Jeremy Baines - Harry Lloyd
Hutchinson - Tom Palmer
Mr Clark - Gerald Horan
Lucy Cartwright - Lauren Wilson
Mr Rocastle - Pip Torrens
Mr Phillips - Matthew White
Doorman - Derek Smith
Mr Chambers - Peter Bourke