Elisabeth "Sissi" Delmas (French: Carole Baillien, English: Christine Flowers and Jodi Forrest) is the daughter of Kadic's principal and a somewhat rather unpopular, yet sissy-like girl who has a crush on Ulrich and is always looking to get the Lyoko Warriors in action.
Suzanne Hertz (French: Nathalie Stas, English: Jodi Forrest) is a science teacher at Kadic, who appears to teach most branches of grade-level science.