![Tetsuro Segawa](https://cdn.noitatnemucod.net/thumbnail/400x400/100/2ce80ba7cc1cd79a29a76f38f9053922.jpg)
Tetsuro Segawa
Tetsuro is a chubby third-year student and is Shō's closest friend. He is highly intelligent, keeps his hair cut short and wears glasses. Tetsuro is a Science Fiction fan and the leader of the Sci-Fi society club in the school, which gives him some knowledge to make quite a few assumptions about the things involving the Guyver.
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The Guyver: Bio-Booster Armor
Main (Role) OVA -
The Guyver: Bio-Booster Armor
Supporting (Role) OVA
![Shioya, Kouzou](https://cdn.noitatnemucod.net/thumbnail/100x100/100/5c3374a056e67992e0d39cb098367bf7.jpg)
Shioya, Kouzou
Japanese![Sabre, Diego](https://cdn.noitatnemucod.net/thumbnail/100x100/100/90601b5a72491c00cea92f061fda48e5.jpg)
Sabre, Diego
Italian![Takaguchi, Kousuke](https://cdn.noitatnemucod.net/thumbnail/100x100/100/903094eece314d1ada6decde11546080.jpg)
Takaguchi, Kousuke
Japanese![Bartholomee, Lowell](https://cdn.noitatnemucod.net/thumbnail/100x100/100/51c520f217dead203479bfe553512758.jpg)