Quark

Quarks are box-like robots

History
Quarks were originally the robot servants of the Dominators. The Doctor and his companions encountered some of them on Dulkis. (DW: The Dominators). After being reunited with Jamie McCrimmon in Scotland, the Doctor defeated an attempted Quark invasion of Earth. (TVC: Invasion of the Quarks). Shortly afterwards, the Quarks used their Giant Wasps to attack the Doctor and Jamie on the planet Gano. (TVC: The Killer Wasps). On an unnamed jungle world, the Quarks attacked the Doctor and Jamie again, causing his TARDIS to be buried under rubble. (TVC: Jungle of Doom) In 1971, the Quarks caused the Martha series of robots, which were invented by the Doctor to do housework, to turn against humanity as a prelude to their invasion. (TVC: Martha the Mechanical Housemaid) In 2044, the Quarks arrived on the planet Hekton to kill the Doctor, but were defeated by the human colonists. (TVC: The Duellists) In 2053, a Quark pursued the Doctor when he participated in an automobile race on Earth. (TVC: Death Race) The Doctor and Mel also defeated the Quarks and their Giant Wasps. (MA: Millennial Rites)

Behind the Secenes

 * The Quarks may be at war with the Vespiforms. This is probablly a mixup between the vespiforms and the Quark's giant wasps. The Killer Wasps was shown in Captain Jack's Monster Files backing this up. (Captain Jack's Monster Files)