Egbert is brothers with Leo. He is considered the "brains" of the two. Egbert and his brother float in and out of the group's activities and provide their own special perspective. Egbert refers to almost every other character as "old boy" (especially Oswald).
Egbert is a cream white color. The majority of his outfits are yellow or blue. Egbert does not normally wear hats, while his brother Leo almost always has one on.