Calaxi
From Tardis Wiki, the free Doctor Who reference
The Calaxi were a species of blue-skinned humanoids who originated on the planet Malleon. Malleon was attacked by the Spherions and the Calaxi were forced to flee across the galaxy. The Spherions destroyed each world they moved to, until one of their leaders, Lumin, discovered a hollow planet, and the Calaxi took residence there, calling it Lumin's World. (COMIC: Music of the Spherions)