This is a list of major and minor characters in the Divergent book trilogy and its subsequent film adaptation, The Divergent Series.

{{Infobox character | name = Beatrice "Tris" Prior | series = Divergent trilogy | franchise = | image = | alt = | caption = | first_major = | firstgame = | last = Allegiant | creator = Veronica Roth | adapted_by = | first_minor = | first_issue = | first_date = | last_major = | last_minor = | last_issue = | last_date = | first = Divergent | portrayer = Shailene Woodley
Elyse Cole (young) | voice = | full_name = | gender = Female | origin = | home = | lbl21 = Original faction | data21 = Abnegation | lbl22 = Faction | data22 = Dauntless | family = Andrew Prior (father)
Natalie Prior (mother)
Caleb Prior

Beatrice "Tris" Prior is the viewpoint character in Divergent and Insurgent, and shares the viewpoint character role in Allegiant with Tobias "Four" Eaton. Born in the Abnegation faction to Andrew and Natalie Prior, she describes herself as having pale blonde hair, wide gray-blue eyes, a long, thin nose and a short and skinny stature. She bears a tattoo of three ravens on her left collarbone leading down to her heart, each one representing one of her family members; she also has a Dauntless seal on her left shoulder and an Abnegation seal on her right shoulder.

In Divergent, 16-year-old Tris has to take the aptitude test to determine her future faction. Tori, her test administrator, tells her that she is "Divergent", that is, she has the aptitude to fit into multiple factions (Erudite, Abnegation and Dauntless), but is warned never to tell anyone that information, not even her family members. In the Choosing Ceremony, she transfers to Dauntless, and assumes a new moniker "Tris". She befriends fellow initiates Christina and Al, who are from Candor, and Will, an Erudite transfer. In the first initiation period, her performance in physical matches against top-ranked candidates such as Peter places her on the brink of being cut from the faction, but she then participates in a capture the flag event where she plays a major part in her team's victory. She has also stood up for the other initiates.

On visiting day, her mother Natalie tells her to ask her brother to research the Erudite's simulation serum and warns her about how she is being watched, revealing she was originally a Dauntless. During the second initiation period, where the candidates are placed in a virtual reality simulation to see how they deal with their greatest fears (for Tris, it is being attacked by crows, which is symbolic of not having power or control; drowning, symbolic of being trapped and powerless, being tied and burned to death; intimacy, symbolic of Four wanting her for her body and not being able to trust him; and killing her family members, symbolic of watching her family die and being responsible for their death), Tris shows an uncanny ability to dismiss or clear the obstacles in record time. This draws Four's attention as he invites her to enter his fear simulation and gives her tips as to how to give a Dauntless-expected response.

After passing initiation, she discovers that Erudite plan to attack Abnegation. When a mind-controlling serum does not work on her, Jeanine Matthews, the Erudite leader orders Tris executed. Tris is saved by her mother, but during their escape, she is forced to shoot Will, and her mother is killed. Reuniting with her father, Caleb and Marcus, they sneak into the Dauntless base, but her father is killed in battle. Tris confronts a mind-controlled Four but helps him break free of the mind control, and then stop Jeanine in time to release the Dauntless.

In Insurgent, Tris, Tobias, Marcus, Caleb, and Peter are fugitives hiding out in Amity sector. She overhears a conversation between the Amity leader, Johanna Reyes, and Marcus that Abnegation leaders died protecting a secret. When Erudite and Dauntless traitors arrive to capture them, they escape by jumping on a train to the factionless camp where they meet Tobias's mother. During a visit to Candor, she reveals that she had killed Will. She later surrenders herself to Erudite to save her Dauntless friends, where she finds out that her brother is working for Jeanine but is later able to escape with Tobias and Peter. She joins Marcus Eaton in order to obtain the information stolen by Erudite from Abnegation and transfer it to every faction. When Tobias finds out about this, he is shocked and angry at her, but they later reconcile and she hopes that they will have no secrets from each other.

In Allegiant, Tris frees Caleb before he is executed, although she still has not forgiven him for his betrayal. The two alongside Tobias, Christina, Peter, Tori, Uriah, and Cara, begin an expedition to the outskirts of Chicago and arrive at the Bureau of Genetic Welfare, a US government-sponsored agency that is behind the faction system. Tris meets with the Bureau leader, David, who gives her Natalie's journal. Tris becomes jealous of a Bureau staff, Nita, fearing that she will attract Tobias, but joins her during her attempt to overthrow the genetically pure Bureau leaders. Nevertheless, Tris saves David when she finds out that Nita wants the death serum, not the memory serum. Later, Tris learns that David wants to expose the memory serum on the whole population of Chicago to restart his experiment. She formulates a plan with Matthew, Nita, Caleb, and Cara, to stop him. Caleb volunteers to undergo the suicidal mission to expose the memory serum on the Bureau, but Tris replaces him because he only does so out of regret, and asks him to tell Tobias her final message: that she does not want to leave him. During the mission, Tris manages to repel the death serum by thinking of those who had died for her, but she is shot by David just as she is able to expose the memory serum. As she lays dying, she learns to forgive herself and others for all the things that she had done to get there and sees visions of her mother reaching out to her.