Sontarans

"I accept your offer of a massacre. Your blood shall soak our uniforms. Your bodies shall soften our steps"

An aggressive clone-warrior race from Sontar who travel in spherical ships, the Sontarans were engaged in a war lasting many thousands of years with the Rutans. In pursuit of the advantage, Commander Linx of the Fifth Sontaran Battle Group tried to invade 13th century Earth, until repelled by the Third Doctor.

Later meetings with the Doctor saw the Sontarans invading the Time Lord home planet of Gallifrey, forcing the Sixth Doctor to build them a time travel machine, and then trying to covert Earth’s atmosphere into one suitable for warrior cloning using ATMOS machines - killer satnavs! Sarah Jane Smith later encountered – and defeated – the last survivor of that invasion, Commander Kaagh.

A Sontaran by the name of Strax befriended the Eleventh Doctor and fought alongside the Time Lord and his allies at Demon’s Run. The diminutive warrior from the planet Sontar teamed up with Madame Vastra and a human by the name of Jenny Flint and accompanied the Doctor on numerous adventures.

The Doctor's most recent encounter with the Sontarans saw them at their most dangerous, as they exploited Earth's protected status from the Flux to conquer the planet across time. From a war fleet in contemporary Liverpool, to a one-sided battle of Sontarans versus the British army at 1855 Sebastapol, to a genocide involving the Lupari species, the Sontarans have never been so martial, brutal and short.