Ralphie Tennelli is the class athlete and daydreamer. He plays a lot of sports, and when he's not, he's daydreaming about playing sports. He's of Italian American descent, once mentioning that his mother's calzones "go down like rocks." He has a distaste for anchovies, which his dad puts on pizza to keep him from eating it. He mentions in "Kicks Up a Storm" that he hates roller coasters and shows to have a weak stomach in "For Lunch". Despite his occasional machismo, he has no problem showing when he's afraid. He loves superheroes and comic books, and he appears to be a science-fiction fan (as shown by his pajamas).