The Doctor and Ruby Sunday have faced the Bogeyman, fought against Maestro, and survived the battlefield of Kastarion 3. In the epic two-part season finale, The Doctor and Ruby arrive at UNIT headquarters on a top-secret mission and a long-buried secret awaits…
as The Doctor
as Ruby Sunday
as Kate Lethbridge-Stewart
as Rose Noble
as Colonel Christofer Ibrahim
as Morris Gibbons
as Harriet Arbinger
as The Vlinx
as The Vlinx (voice)
as Susan Triad
as Bailey Sinclair
as Melanie Bush
as Carla Sunday
as Mrs Flood
as Cherry Sunday
as Colonel Winston Chidozie
as Sutekh (voice)
as Corporal Alice Sullivan
as Kind Woman
as Amol Rajan (archive footage)
as Roger ap Gwilliam (archive footage)
as Louise Miller
as The Doctor (archive footage) (uncredited)
as Sarah Jane Smith (archive footage) (uncredited)
