District 12:
* Katniss Everdeen: The protagonist, a skilled hunter and archer.
* Primrose Everdeen: Katniss's younger sister, kind and gentle.
* Gale Hawthorne: Katniss's best friend and hunting partner.
* Madge Undersee: Mayor Undersee's daughter, who gives Katniss the mockingjay pin.
* Peeta Mellark: The baker's son, chosen as the male tribute from District 12.
* Haymitch Abernathy: The only surviving victor from District 12, serving as Katniss and Peeta's mentor.
* Mrs. Everdeen: Katniss and Prim's mother, deeply affected by their father's death.
* Mr. Everdeen: Katniss's late father.
* Mrs. Mellark: Peeta's mother.
* Mr. Mellark: Peeta's father, the baker.
* Rue: A young girl from District 11 who befriends Katniss during the Games.
* Thresh: A strong and silent boy from District 11, who helps Katniss in the Games.
Capitol:
* President Snow: The ruthless and manipulative leader of Panem.
* Seneca Crane: The Head Gamemaker in charge of the Hunger Games.
* Caesar Flickerman: The flamboyant host of the Hunger Games.
* Effie Trinket: The escort from District 12, assigned to Katniss and Peeta.
* Cinna: Katniss and Peeta's stylist, known for his creativity and talent.
* Portia: Cinna's assistant.
* Plutarch Heavensbee: The new Head Gamemaker who replaces Seneca Crane.
Other Districts:
* Johanna Mason: A tough and cynical victor from District 7.
* Finnick Odair: A charming and skilled victor from District 4.
* Annie Cresta: A young victor from District 4, traumatized by the Games.
* Beetee: A talented inventor from District 3, later becomes part of the rebellion.
* Wiress: A strange but brilliant girl from District 3, who helps Katniss and Peeta in the Games.
* Clove: A ruthless girl from District 2, a main antagonist in the second book.
* Marvel: A young boy from District 1, who befriends Peeta in the Games.
This list is not exhaustive but covers some of the most prominent characters in The Hunger Games trilogy. The books also feature many other characters, including various victors, tributes, Capitol citizens, and rebels.