Rue is a young girl from District 11 who Katniss befriends during the 74th Hunger Games. Tragically, Rue is killed by the Career Tributes.
Primrose Everdeen, Katniss's younger sister, is the reason Katniss volunteers for the Hunger Games in the first place. She is a young girl with a love for animals and a gentle spirit. Prim does not participate in the Hunger Games.
Katniss's children are not mentioned in the Hunger Games books, as the story focuses on Katniss's experiences in the Games and the aftermath of the rebellion.