These unnamed blue humanoids appeared in the Samurai Jack episode, XCVI.
Overview
Originating from their unnamed home planet, they appeared to have blue furred humanoid bodies and black eyes. Nothing is known more about these beings, other than in their most notable appearance in XCVI, when the children were kidnapped by the Dominator to the factory where they will be brainwashed into wild feral creatures. After the Dominator was killed, the children resumed back to their normal selves after Jack was forced to travel with the omen after he thought they were dead. It is unknown they would still live on Earth in the future without Aku's rules.