Editing Code Lyoko (section)

===Supporting characters===
* '''Waldo Franz Schaeffer'''
:Voiced by: Mathieu Moreau (French);<ref name="french cast" /> Paul Bandey (season 2), Alan Wenger (season 4) (English)
:More commonly known as '''Franz Hopper''' (a combination of his middle name and the maiden name of his wife) he is/was the creator of both Lyoko and X.A.N.A., and was involved in the creation of Project Carthage. His wife Anthea, was kidnapped by men in black suits and he was forced to flee with his young daughter, Aelita. The two went to live in a house called the Hermitage, located in a park near Kadic Academy and the abandoned factory. While working as a science teacher at the school, he constructed the Supercomputer in the factory, and programmed X.A.N.A. and the virtual world of Lyoko within it. When the men in black suits tracked him down again, he took Aelita to the factory and virtualized her into Lyoko with him, where he believed they would be safe. However, X.A.N.A. refused to obey its creator's orders or live in peace alongside Franz and his daughter. Franz was forced to shut the Supercomputer down until it was eventually discovered by Jeremy nearly ten years later. In one of the final episodes of the show, he sacrifices himself to allow Jeremy to finally destroy X.A.N.A.

* '''Yolanda Perraudin'''
:Voiced by: Alexandra Correa (French); Jodi Forrest (English)
:The school nurse who often aids the students injuries from any incidents. In "X.A.N.A.'s Kiss," Jim was kissed by a Polymorphic Specter disguise as her and attempted to ask her for a date, much to her confusion.

* '''Samantha "Sam" Knight'''
:Voiced by: Jodi Forrest (English)
:One of Odd's ex-girlfriends that only appears in two episodes. She first appears in "Rock Bottom?" where Odd hires her as a DJ to Yumi's party but was short lived after X.A.N.A. caused a earthquake to sink the school. She appears again in "Final Round" where both her and Odd enter a skating competition.

* '''Johnny Cleary'''
:Voiced by: Jodi Forrest (English)
:Hiroki's best friend that introduced in Season 3. It is revealed in "The Pretender" that he has a crush on Yumi, despite their age difference and he asks Ulrich for dating advice (which is embarrassing because Ulrich also loves her).

* '''Anthea Hopper-Schaeffer'''
:Voiced by: Sharon Mann (English)
:Aelita's pink-haired mother who was kidnapped by a group of Men in Black when they lived at a Mountain Cabin, this traumatized Aelita with nightmares and hallucinations of her imaging the mysterious men as a pack of ravenous wolves while herself resembles her doll Mister Pück.