The character first appears in the fifth-season episode "", which reveals elements of Ro's backstory. She continued to appear throughout that season, and made a further appearance in each of the sixth and seventh seasons. Starfleet sought her aid to help the Cardassians apprehend a Bajoran terrorist. After joining the "Enterprise" crew, she wants to abandon the engineering section of the vessel following a series of power failures in "". Alongside Geordi La Forge (LeVar Burton), she is affected by a Romulan experiment in "The Next Phase" and must help prevent the aliens from destroying the "Enterprise". In "", she is one of the crew who are transformed into children and helps prevent a Ferengi plot. When making her final appearance in "", she is tasked by Starfleet to infiltrate the Maquis, eventually defecting and joining them permanently.