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Code Lyoko Wiki

Heidi Klinger is a minor character in eighth grade at Kadic Academy. She is blonde with two strands collected as tails, wears purple flannel with a small flower and light purple pants. In the episode X.A.N.A.'s Kiss she appears to have feelings for Odd, and agrees to go out with him. It is revealed earlier in the episode that the main reason Odd asked her out was that he claimed she was the only girl in the 8th grade that he had not yet dated (apart from Sissi and Aelita). She agrees to go out with him, before being kissed by a Polymorphic Clone of Jeremie. Currently, she is another one of many of Odd's ex-girlfriends and can be seen with Matthieu Ducrocq on occasion.

It is revealed in the episode Aelita that Heidi told the entire school that Odd's feet smell. When Odd confronts her about it, asking if his feet smell a little, she retorts, "A little? Just make sure you and your sneakers don't come within fifty feet of me", evoking laughter from everybody around her.

Heidi often acts as an extra or background character, and has cameos in many episodes. For example, in the episode Wreck Room, Heidi asks the William Clone to open the refrigerator in the Rec Room. To prevent embarrassment due to the clone's dim-wittedness, Yumi offers to open it instead.

She witnessed the electrocution of Nicolas in episode The Lake, warned the rest, but was also electrocuted along with Herb and Mrs. Hertz. She recovered later. Apparently, she was possessed by XANA in the episode Bad Connection, but only appeared on the roof of the building where Odd and Sissi were going to be shot, after the tower was deactivated.

She made no appearance in Code Lyoko Evolution, but was mentioned in False Pretenses by Odd.

In the English dub, she is voiced by Barbara Weber-Scaff (season 1), Jodi Forrest (season 2), Sharon Mann (seasons 2-3) and Mirabelle Kirkland (season 4).


Season 1[]

Season 2[]

Season 3[]

Season 4[]


  • In Polish version of the show, she was voiced by Agnieszka Kunikowska.