Lieutenant Rriarr was a golden-furred male Caitian officer who served in Starfleet in the late 24th century. By 2380, he was assigned as to the USS Titan as a tactical officer. (TTN novel: Sword of Damocles) In 2381, he was on duty when the Titan detected a high power sensor beam emanating from the source of energy bursts they were tracking. The duty officer, Fo Hachesa had Rriarr raise shields as a precaution, thinking they might be a Borg early warning system. (ST - Destiny novel: Gods of Night)