Cabinet of the United Kingdom

The Cabinet of the United Kingdom was a group within the British government. From at least 1796, the Cabinet was in session in the Cabinet Room in 10 Downing Street. (TV: World War Three) While he disguised himself as Acting Prime Minister Joseph Green, in 2006, Jocrassa Fel-Fotch Passameer-Day Slitheen told General Asquith that he had "cancelled" the airlifting in of the "rest of the Cabinet", as "[t]hey'd only get in the way." (TV: Aliens of London)

Following his election as Prime Minister in 2008,, under the identity of "Harold Saxon", attended a ultimately brief session of his Cabinet in which he, after cracking a joke and thanking them, accused them of being traitors who abandoned their political parties to jump on his bandwagon. He rigged the deskphone speakers on the Cabinet Room table to release a lethal gas that killed the Cabinet ministers, while using a gas mask to protect himself and mock his victims. (TV: The Sound of Drums)

Behind the scenes
Within at least Aliens of London, the Cabinet is not referred to in dialogue as anything more specific than "the Cabinet".