Casts
Carey Mulligan
as Sally Sparrow
Finlay Robertson
as Larry Nightingale
David Tennant
as Tenth Doctor
Freema Agyeman
as Martha Jones
Lucy Gaskell
as Kathy Nightingale
Michael Obiora
as Billy Shipton (Young)
Louis Mahoney
as Billy Shipton (Old)
Richard Cant
as Malcolm Wainwright
Thomas Nelstrop
as Ben Wainwright
