Katherine Bellaver was played by Joyce Easton in The Fury.
She is the mother of Gillian Bellaver. She loves her daughter and, through her insistence, brings her to the Paragon Institute. However she also does not listen to her daughter as she should regarding her abilities, which causes friction between her and her daughter.
Childress and his secret service plan to carry out her murder as part of a plan to kidnap Gillian and turn her into a weapon in the service of the United States like they did with Robin. It is implied it was not carried out, because of Gillian´s successful escape from them.