River Kubelik

River Kubelik is a recurring character in The Powerpuff Girls, a gymnast from Sherwood, Oregon and younger sister of the deceased Flower Kubelik.

Before Season 2
Rover Kubelik successfully won the local gymnastic competition the previous year and advanced to Regionals. The night before the Regional Competition began,however, her older sister Flower died in a car accident, throwing off River's concentration, leading to her elimination. River took Flower's death hard, and since them always traveled with a locket with Flower's picture in it.

Season 2
River competed in the gymnastic completion the following year, snatching victory in the local competition just as she had done the previous year. In the subsequent interview with Dan Segallos, she admitted that her sister's death caused her to lose the previous year and this it would not happen again. She showed Flower's picture in her locket to the camera and proclaimed that whenever she looked at her picture, it felt as if she were still alive. Watching in Townsville, Sarah Bellum and Elliott Meyer recognized Flower's picture as Blossom.