In its first appearance, Image Problem, X.A.N.A. created a clone of Yumi while keeping the real Yumi as a prisoner in the Guardian. The clone started acting weird and even told Ulrich to go on a date with Sissi and attempted to flirt with Jeremie. Its aim was to incapacitate the Lyoko Warriors, by sabotaging the scanners. It also attacked Yolanda, Mr. Delmas, and tried to kill Jeremie. It ended up fighting the real Yumi in the Scanner Room. It was mentioned in the show that this one was proved that materializing a digital entity was possible. It ended up encouraging Jeremie in his process to bring Aelita to Earth.
- In the English dub, seasons 1-4, it was played by Mirabelle Kirkland. In Japanese, it was played by Kinoshita Sha Hua. In Evolution, it was played by and French Dubbed by Melanie Tran.
- It was the first clone made by X.A.N.A. to be shown.
- Most later clones and Spectres after this one had the Eye of X.A.N.A. as pupils, whereas this one had the eye on its forehead.
|Jeremie Belpois | Aelita Schaeffer | Odd Della Robbia | Yumi Ishiyama | Ulrich Stern | William Dunbar|
|Sissi | Jim Morales | Suzanne Hertz | Anthea Schaeffer | Mr. Delmas | Laura Gauthier | Franz Hopper|
|Kiwi | Herb Pichon | Nicholas Poliakoff | Amelia "Milly" Solovieff | Tamiya Diop | Hiroki Ishiyama | Johnny | Takeo and Akiko Ishiyama|
|X.A.N.A. | Monsters|
|Professor Tyron | Ninjas | X.A.N.A. William|
|Jean-Baptiste Pujol | Theo Gauthier | Emily LeDuc | Taelia | Samantha Knight | Samantha Suarez | Heidi Klinger | Mathias Burrel | Magali de Vasseur | Claire Girard | Brynja Heringsdötir | Patrick Belpois | Romain Le Goff|
|X.A.N.A. Aelita | X.A.N.A. Odd | X.A.N.A. Yumi | X.A.N.A. Ulrich | X.A.N.A. Franz Hopper | X.A.N.A. Anthea Schaeffer | Jeremie Clone | Aelita Clone | William Clone | Subdigitals|