The following characters are members of the Takahashi family in the Days of Infamy series.
- Hiroshi Takahashi-son of Jiro and Reiko (deceased), older brother of Kenzo
- Jiro Takahashi-husband of Reiko (deceased), father of Hiroshi and Kenzo
- Kenzo Takahashi-son of Jiro and Reiko (deceased), younger brother of Hiroshi
- Reiko Takahashi-deceased wife of Jiro, mother of Hiroshi and Kenzo