Men in Black (Dreamland)

The Alliance of Shades, also known as the Men in Black, was an organisation created to hide alien activities on primitive planets such as Earth. They used android agents to remove any signs of alien activities, including any witnesses.

History
In 1958, four androids, including Mister Dread, were obtained by Lord Azlok and were sent to find Rivesh Mantilax and his weapon. They were damaged by Night Eagle and his tribe, though Mister Dread was later repaired.

In 1972, the alliance discontinued most of their robotic agents. (DW: Dreamland)

Since the 1970s, three of the agents, including Dread, were kept to defend a vault in which many of the items they covered up were kept. They were activated when Androvax attempted to open the vault and save his species. Dread and two other agents stopped him, and Sarah Jane Smith when she attempted to do the same. When Dread found that Sarah Jane had taken the newspaper clipping of Ocean Waters, they attacked Waters' house, finding Sarah Jane, Rani, Androvax in Clyde's body, Ocean and Minty. (SJA: The Vault of Secrets)

Behind the scenes

 * According to the Tenth Doctor, the other members are called Mister Terror, Mister Fear and Mister Apprehension, but it is unknown if it was just a joke on Mister Dread's name.
 * The Alliance of Shades was inspired by the popular UFO conspiracy theory of the Men in Black, these being government agents dressed in black suits who reportedly harass or threaten UFO witnesses in order to keep them quiet about what they have seen. This was later said out loud by Clyde and Rani, the latter who asked where Will Smith was, referring to the film franchise.