Chris was disappointed when he found all the students in the auditions are not talented. He heard Aelita's demo mix, and believed she is the talent he is looking for, but he can't find her. He is dragged into a fight with one of X.A.N.A.'s Polymorphic Spectres (imitating himself), fights besides Jim, and helped the Lyoko Warriors before his memory was erased by a Return to the Past. Jeremie handed him Aelita's mix personally and tells him where to find her.
Chris next appeared in Crash Course, where he judged the finalists with the other members of the Subdigitals.
His last appearance was in Music to Soothe the Savage Beast, where he performed at the concert after the opening act performed by Aelita. After that, no mention is ever made of him or his relation to Jim again. Since Chris and Jim are of a similar age it is likely that Jim's sibling is much older than him.
- Chris seems to be a key member of the Subdigitals as he says the record company will come down on him if he cannot find new talent.
- He shows authority in the decisions of the group as shown in Crash Course.
- According to Chris, the record label made them change their name.
- In the French version of Code Lyoko, his voice is provided by Bruno Mullenaerts.