The T'sarki were a seal-like species that originated on Kalishik, situated within the Gordian Reach sector. Known for their amicable nature, they were easily provoked by perceived instances of dishonesty and deceit from other species. Contributing to the Back Reach's industrial activities, they frequently applied for work permits at Feldwes' factories. Furthermore, the mining operation conducted on the planet Usta represented a collaborative effort between the T'sarki and the inhabitants of the Arda system. A T'sarki was also the gambler Groomert, who participated in a seven card comet game alongside the Trinovate Pilliask and the Humans Havet Storm and Vain.