Major characters •
Gregor: The series' protagonist, the
Overland "warrior" of
Bartholomew of Sandwich's prophecies, and a rager (a warrior with
berserker-like fighting ability). Despite his tremendous skills as a fighter,
Gregor cares deeply for those around him and tries very hard to retain his humanity during the Underland war. He develops romantic feelings for the Underlander Luxa. •
Ares: A large, very strong black bat and Gregor's bond. Before the war, he was shunned by bats and humans alike for allowing his
bond Henry to die. During the war, however, the public's opinion of him begins to change because of his skills as a warrior.
Ares is heralded as a hero upon his death in the region known as
Tartarus. •
Ripred: A rat, rager, and seasoned warrior.
Ripred's immense experience and wisdom lead to his acting as general, strategist, and skilled fighter for the humans. Ripred never loses sight of his own goals, however, which almost restarts the human-gnawer conflict after the end of their war. Ripred becomes fond of Gregor's sister
Lizzie, who reminds him of one of his deceased pups, and bonds with
Queen Luxa in part because of his concern for her and her family. •
Luxa: The Underlanders' young queen, granddaughter of
Solovet and Vikus.
Luxa is proud, stubborn, and cares deeply for her friends. Though her friend Gregor admires these traits in general, they are not an asset for her during wartime, and this causes some conflict for her throughout the book. Luxa has been bonded to the flier
Aurora since childhood, and bonds to the rat Ripred at the end of the novel. She also begins to develop romantic feelings for Gregor. •
Lizzie: Gregor's little sister and "princess" of the prophecy (by her relation to
Boots).
Lizzie is very bright, but suffers from frequent
panic attacks. As such, her older brother worries for her safety and almost refuses to allow her to stay in the Underland. The rat Ripred is mainly responsible for Gregor's change of heart, and promises to protect Lizzie with his life. Lizzie believes Ripred to be lonely, and is heartbroken when she thinks Ripred has died fulfilling his promise. The successful cracking of
The Code of Claw is due in large part to her efforts. •
Boots (Margaret): Gregor and Lizzie's toddler sister. She is known by
the crawlers as "the princess", which leads the Underland humans to believe she is important to the
code-breaking effort. Her greatest importance to the story, however, comes from the contrast she presents between herself and her older brother. Gregor struggles to keep her in the dark about the terrible things going on around her, but is not entirely successful. •
Solovet: The
Regalian army's head and wife of statesman
Vikus. Gregor distrusts
Solovet because of her involvement with
the plague, but is forced to obey her orders because of her capability as a military commander. Gregor freely admits that the training she forces on him may have kept him alive, but still hates her for imprisoning him in the Regalian dungeon. Solovet is ambushed while on a diplomatic mission towards the end of the war and dies. Her husband, knowing that he could have saved her at the cost of revealing that the humans solved the Code of Claw, experiences a
stroke as a result, and almost dies himself. •
The Bane (Pearlpelt): A highly unstable, gigantic white rat believed to be a harbinger of doom in the Underland.
The Bane is emotionally fragile but extremely dangerous, especially when goaded on by his "friend"
Twirltongue. He personally kills numerous Underland creatures, including the flier Ares. He is killed by Gregor and Ares in the last few chapters of the novel. == Codes in book ==