Lupar

The Lupari, singular Lupar, were a humanoid race that resembled Earth dogs. They were warriors with a great sense of honour.

They were species-bonded with humanity, meaning each human had a Lupar tasked to protect them. On Halloween 2021, seven billion Lupari ships approached Earth to protect it from the Flux, (TV: The Halloween Apocalypse) creating an event the humans dubbed the "Three Minute Eclipse." However, they unknowingly allowed the Sontarans, who came to Earth before the shield took effect, to take over the Earth and blamed fellow Lupar Karvanista for proposing the idea, however he blowed all Sontaran ships and solved the problem (TV: War of the Sontarans), they continued to protect humanity from the Flux and its consequences until the Sontarans attacked Earth again and attacked and threw all the Lupari into space, appropriating the shield for themselves and leaving Karvanista as the only last member of the Lupari. (TV: The Vanquishers)

The species, with the exception of Karvanista, was wiped out after an army of Sontarans entered their ships and killed them. The Lupari's deaths were avenged by Karvanista, who allowed the Sontarans to be consumed by The Flux. (TV: The Vanquishers