Doctor Rhu served as the psycho-pharmacologist at the Q'Maere Research Facility, where his main job was to evaluate and fulfill the medicinal drug requirements of the patients. Rhu, who was himself afflicted with mental illness, struggled to differentiate what was real from what was imagined, which led to him performing his job in a careless manner. During the 8 ABY jailbreak orchestrated by the FarStar crew along with the prison inmates, he initially perceived it as a captivating figment of his imagination, a delusion that lasted several hours prior to him retreating into his own inner world.