Rorg, a Vorcarian blood tracker, first appeared in the Farscape episode "Till the Blood Runs Clear", along with her mate Rorf they were bounty hunters looking for D'Argo, Rygel and Zhaan. In the episode she and her mate encounters John Crichton and Aeryn Sun, who convinced Rorf and Rorg that they were the well known bounty hunters Butch and Sundance, and that they should join forces to look for the fugitives. This ends up in a fight between the two bounty hunter groups and Rorf and Rorg flee.
In the episode "Liars, Guns and Money (2): With Friends Like These..." Rorg would once again appear with her mate Rorf, this time they were the ones being hunted, and were saved by D'Argo. Because they gave up a chase for some deserters due to Rorg being pregnant, so the Peacekeepers sent a termination squad after them.