The Doctor, Jamie and Zoe return to Earth and become embroiled in the schemes of Tobias Vaughn. They meet up with an old friend, Colonel (now Brigadier) Lethbridge-Stewart, and some old enemies, the Cybermen.
The Doctor
Jamie McCrimmon
Zoe Heriot
Tobias Vaughn
Brigadier Lethbridge-Stewart
Professor Watkins
Isobel Watkins
Packer/Cyberman Voice
Tracy
Gregory
Major General Rutlidge
Major Branwell
Captain Turner
Sergeant Peters
Sergeant Walters
Corporal Benton
Private Perkins
Phone Operator
Lorry Driver
Patrolman
Workman
Policeman
Cyberman
Cyberman
Cyberman
Cyberman
Cyberman
Cyberman
Cyberman
Cyberman
