A member of the Manga Society, Takayanagi is on friendly terms with the Genshiken members and is seen conversing with them from time to time on various matters. In one notable instance, he finds himself in the unenviable position in the middle of the battle between the girls of his club and Ogiue, who had attempted to join. He is much relieved when the Genshiken takes Ogiue in, as the other girls in Genshiken are already hated by the Manga Society girls for various reasons.

Genzou serves as the photographer at the Ninja Academy.    

The first squad leader of the Dark Axis invasion force. Zapper Zaku used to be an honest person. He fought fairly, cared about his friends, and believed that people become stronger by keeping promises. That was before Zapper Zaku became a squad leader. When Zapper Zaku was promoted, his personality became twisted. Now he prefers to shoot first then ask questions later, he never hesitates to threaten his subordinates, and fights dirty. Whenever Zapper Zaku leads an attack, he never has any sort of plan and just comes up with ideas on the fly. The only plan that Zapper Zaku came up with turned out to be the only plan of the Dark Axis trio that completely succeeded. Finally, Zapper Zaku is a skilled actor, able to fool enemies and allies alike with his acts.

Professor Nishiya is a university professor who is an acquaintance of Ryougoku&#039;s.    from wikipedia

The teacher of Haruhi and Kyon&#039;s classroom.

The umpire for the baseball game that the SOS Brigade participated in.

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Eiji Yanagisawa

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