A multi-page biography was created for narrative reference, art and audio. When making characters, Avellone prefers to focus on: their role in the story, their name, their visual signature (discussed with the concept artist), and in Kreia's case the character's ability to serve as his voice. Her name is inspired by Princess Leia of the original "Star Wars" films, and serves a similar role as ally, but Kreia has darker past demonstrated by a harsher prefix. Her visuals, meanwhile, combine elements of both "the wise mentor" like Obi-Wan's robes and dark side elements like Palpatine's hood. Brian Menze, lead concept artist and modeller for the characters, designed Kreia.