These are the Estrellei, essentailly the Gods of Gods in Sutrimuerte, the being of galaxies themselves. They were originally the ones that created Rí, and he went off to create the others. They usually travel in groups of 2.5-6, like Ruby guards. (They tend to come in teams of three, or more.)
(Of course there's a planet head guy)
They were written as really cruel and uncaring, which I don't really get why. Like, I get that they're galaxies and basically the universe itself but why were they cruel to everything that makes them up? It's not really like my old writing made much sense.