Ralkana was a member of Augris' species living under the rule of the the Mokra Order and the daughter of Caylem and his wife. Ralkana was killed in the prison tunnels when she was trying to rescue her mother.
In 2372, Caylem believed that Kathryn Janeway was Ralkana and 'convinced' her to help him free his wife. Janeway was unaware that Caylem's wife was dead. Before he died, Janeway pretended to be his daughter Ralkana, assuring him that his wife was safe, and the two of them forgave Caylem for his actions. (VOY: "Resistance")
This character was only mentioned in dialogue.