A newly appointed doctor at a Quarren hospital in 2377 who grows suspicious of the diagnoses made by his superior Kadan and helps to uncover the abduction of offworld workers.
Doctor Ravoc appears in the seventh-season Voyager two-part story Workforce, played by Jay Harrington. He has only just joined the neuropathology division run by Doctor Kadan when patients such as Tuvok are brought in, supposedly suffering from a disorder called Dysphoria Syndrome.
Kadan's treatment is in fact the memory alteration that turns kidnapped travellers into contented labourers. Ravoc notices that the cases are too numerous and too similar, and that the patients' recovered memories look more like the truth than like delusion.
When Kadan tries to keep him quiet, Ravoc instead works with the investigator Yerid and with Chakotay, who has been brought to the hospital as a patient. His evidence helps to bring the scheme to the attention of the authorities and to restore Voyager's crew.