Ben is a highly intelligent boy who, before joining the Losers' Club, often spent his free time reading at the public library. He is also obese, and due to this has become a frequent victim of Henry Bowers. His mechanical skills become useful to the Losers, from making two silver slugs to building an underground clubhouse. He develops a crush on Beverly Marsh and the two leave Derry together after the 1985 defeat of It. As he grows up, he sheds his excess weight and becomes an internationally renowned architect.