The Brrbrlpp were the indigenous species of the planet Esfandia. They were often referred to by offworlders as the Cold Ones since it was easier to say than Brrbrlpp. They spoke a form of trinary via radio-waves which was taught to them by Commander Si of the Esfandia Long-Range Communications Base. The Brrbrlpp as a species were talkative and their calls could travel great distances. Like many other sentient species, Brrbrlpp youth were willing to risk death for excitement.