Ten Galaxies
From Tardis Wiki, the free Doctor Who reference
The Ten Galaxies were ruled by the Dominators and their Quark servants. (TV: The Dominators)
It was unknown how other known galaxies fit into this scheme except that in 1984, a group of Dominators attempted to invade Earth, located in the galaxy of Mutter's Spiral. (COMIC: The Fires Down Below)
The Panjistri were aware of or operated within the Ten Galaxies in the far future. (PROSE: Timewyrm: Apocalypse)
