Banner was an estranged father of Bruce Banner.
Banner had an estranged relationship with his son, Bruce during his youth, with Bruce believing that he was never able to impress him. At the time of his death, Bruce was unable to visit him because he was focussing on his career working on gamma ray experiments.
- Bruce Banner - Son
- In the comics, Brian Banner is the father of Bruce Banner who eventually returned from the dead as a Hulk-like creature known as Devil Hulk.