Leila Barthes (レイラ・バルト Reira Baruto?) is the instructor in charge of Pilot Training at Stellvia. She used to be an elite pilot, and spent some time wallowing in despair after losing the "elite" tag. However, she recovers from this(after an incident on a space station that was under construction) and chooses to become an instructor at Stellvia. She is tough toward the students because she wants them to succeed, she has a loving smile toward the childlike attributes of her students and is very scary when she is mad.