Linus is the former secondary antagonist of The Adventures of Sharkboy and Lavagirl. Presumably, he is the same age as Max and Marissa, as they are all in the same class at school.
He was Max's former enemy at the start of the movie but at the end he is now best friend and Mr. Electric's former boss.
Linus is a fourth grade boy with brown hair and brown eyes. His outfit within the classroom is a black shirt with blue sleeves.
Powers & Abilities
For most of the movie, Linus and Max are enemies.