Chargoth

Chargoth are aliens who are quite large and inhumane but have the brain capacity to make a society like the humans, they just choose not to. They have their own planet called Chargothia, where they have a human-like society built up but they have inhumane fights put on by the Chargoth King, where every prisoner, no matter the species, must fight for their lives in the ring. They speak their own language.

They are first seen as Sky's roommate in Ironbolt, Lara, was Chargoth. She made Chargoths seem very possessive, jealous, and violent creatures as she attacks Sky when she's jealous Sky talked to Luke.

In Chargoth Nation, the crew lands on Chargothia looking for fuel. The Chargoths kidnap them and put them in the fighting ring. The Chargoth King only allows them to leave because he realized Charlie is an Aestro and that scared him.