Boy on Train is a minor character in the 2004 film The Polar Express.
| Characters | |
| Children | Hero Boy (Chris) • Hero Girl (Holly) • Know-It-All • Billy the Lonely Boy • Sister Sarah • Gus the Toothless Boy • Blonde Girl (Heather) • Naughty/Nice children (including Steven) • Other children (including Boy on Train • Little Boy • Young Boy) |
| Adults | Conductor • Hobo • Smokey and Steamer • Santa Claus • Pastry Chefs • Waiters • Hero Boy's parents |
| Elves | Elves • Acrobatic Elves • Elf General • Elf Lieutenant • Elf Singer |
| Animals | Caribou • Santa Claus' reindeer • Wolves • Other animals |
| Toys | Ebenezer Scrooge puppet • Scrooge's friends |