Metalkind (Sky)

This Metalkind went to Earth in search of Sky, a Fleshkind weapon intended to exterimnate his people. The Metalkind was damaged when the weapon unleashed her energies against it. The creator of the weapon, Myers, used the Metalkind to summon his race to Earth, intending for her creation to destroy them all. Myers' plan was foiled by Sarah Jane Smith and her allies. The Metalkind then freed itself and took Myers with it back to its homeworld. (SJA: Sky)