List of The Underland Chronicles characters

This is a list of The Underland Chronicles characters, organized according to the species names given in the series. These names usually refer to a common trait or habit of the species.

When speaking to them, most Underland inhabitants call humans by the name they prefer so as not to insult them. In their own languages, however, the animal species of the Underland refer to humans as killers. The "killers" below are organized by "ethnicity".

The term Overlander refers to any human born in the Overland to parents who were also born there. In general, they have darker skin and hair than Underlanders, and their eyes range from blue to brown. These differences are not permanent, however, as all Underlanders are descendants of Overlanders who lost these qualities over time.

Underlanders are humans descended from a group of 800 Overlanders brought underground by Bartholomew of Sandwich. They have nearly-translucent skin, which makes their veins much more visible, as well as very pale (and often silvery-colored) hair. Similar to albino humans, their eyes range from red to purple.

Halflanders are humans with one Overlander parent and one Underlander parent. As the two groups rarely mix, only a few Halflanders have ever been born.

Bats are known as fliers in the Underland. All known bat names are taken from Greek mythology. As a species, they are longtime allies of the humans, and individual fliers often choose to personally ally themselves with humans through a ceremony called bonding. Fliers can use echolocation, which gives them a nearly infallible sense of direction. Like Overworld bats, they possess large ears which help them navigate and communicate, but their eyes are much more developed than those of their smaller cousins.

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