A knowledgeable passenger who befriends the Hero Boy early in the journey. Later, he is accidentally dumped into Santa's sack along with the other children and is escorted out by the elves.
They are fellow children whose journey repeatedly overlaps aboard the Polar Express.
Hero Boy befriends the know-it-all boy in the passenger car, and later finds him in Santa's sack.
The elves assist Know-It-All during the same workshop incident.
Know-It-All is found in Santa's sack, and the elves escort the children out.
Explore the full interactive character relationship map of The Polar Express
Related entry on Wikidata (Q115748682), public domain (CC0).