Series 4 - The Sontaran Stratagem

Information

Writer: Helen Raynor
Director: Douglas MacKinnon
Script Editor: Nikki Smith
Producer: Suzie Liggat
Executive Producer(s): Russell T. Davies, Julie Gardner, Phil Collinson

Originally Broadcast: 26th April 2008
Duration: 45 mins

Synopsis
With the mysterious ATMOS devices spreading across the world, Donna discovers that even her own family is not safe from the alien threat – but is it too late to save them? And what will she make of Martha Jones?

Cast
The Doctor – David Tennant
Donna Noble – Catherine Tate
Martha Jones – Freema Agyeman
Wilfred Mott - Bernard Cribbins
Sylvia Noble - Jacqueline King
Luke Rattigan - Ryan Sampson
Colonel Mace - Rupert Holliday Evans
General Staal - Christopher Ryan
Commander Skorr - Dan Starkey
Jo Nakashima - Eleanor Matsuura
Private Harris - Clive Standen
Private Gray - Wesley Theobald
Ross Jenkins - Christian Cooke
Worker - Rad Kaim
Atmos Voice - Elizabeth Ryder

Sontarans created by Robert Holmes