An 18-year-old training instructor in Dauntless known as Four, who serves as Tris’s mentor and love interest, with a mysterious past tied to his original faction.

The logical and composed Erudite representative on the city council known for her analytical approach to problems, including the challenge posed by Divergents.

A brutal and ambitious Dauntless instructor who enforces the faction's harsh policies and holds significant authority within their society.

Tris’s brother, initially perceived as a model Abnegation citizen, who surprises Tris with his faction decision during the choosing ceremony.

Tris’s parents, who appear as consummate Abnegation members, but reveal unexpected allegiances and histories as the story unfolds.

Tris’s friends from Candor and Erudite, respectively, who become integral to her life in the Dauntless faction and offer different perspectives on faction values.

Candor transfers and bullies in Dauntless initiation, led by Peter, who frequently target Tris with their mocking and competitive behaviors.

A Dauntless initiate struggling with the faction’s demanding environment, he finds himself torn between his ideals and the realities of Dauntless life.

A high-ranking Abnegation official and Tobias’s father, who is implicated in factional conflicts described throughout the narrative.

A Dauntless tattoo artist who administers Tris’s aptitude test and provides guidance concerning Tris’s Divergent status.