Cyberman
Aided by his two assistants Jamie and Victoria, the Doctor lands the TARDIS on Telos, last resting place of the infamous Cybermen. There he discovers a band of archaelogists on a secret expedition to unearth the reason for his old enemies' extinction. In the underground shadowy depths, they find the icy tomb. A whole army in hibernation. A threat to no one, if the temperature remains low. But if the traitor in their midst gets his way, things could really heat up.
Elevator Boy (uncredited)
Mobster Nick Scanlon has managed to buy several of the local government and law-enforcement officials. However, he can't seem to touch the incorruptible police captain Tom McQuigg, who refuses all attempts at bribery. Prosecuting attorney, Welch, and a police detective, Turck, are crooked and make McQuigg's job as an honest officer nearly impossible.