| File:Aelita Possessed.jpg|
|First appearance||Saint Valentine's Day|
|Also known as||Aelita|
|Eye color|| Black|
Dark green (on Lyoko)
Tower Control and deactivation
X.A.N.A. Aelita is Aelita when she's possessed.
In Wrong Exposure, in addition to brainwashing her, X.A.N.A. had the Scyphozoa plant an inhibitor inside of her to prevent devirtualization from the terminal, in order to make her throw herself into the network without interference.
In Saint Valentine's Day, Aelita was possessed by a corrupted program chip made by X.A.N.A. and hidden inside a pearl-like necklace she received on Valentine's morning, in the real world. Once on Lyoko, the Eye of X.A.N.A. was not seen in her eyes but instead on her forehead. (Similar to William in season 4)
Like her non-possessed counterpart, she is voiced by Sharon Mann. In the Spanish, Latin-American dialect, she is played by Xochitl Ugarte. In the Spanish, European dialect, dub, she is played by Olga Velasco. In Finnish, she is played by Marianna Alanen.
- Aelita is one of two people possessed by the Scyphozoa.
- Despite being possessed the most by the Scyphozoa, it has occurred for the shortest of all Scyphozoa possessions; the only other being William who had the longest X.A.N.A.-fication in history.
- In the Japanese dub, she was played by Yū Shimamura.
|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|
|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|