Also known as マムシ�蛮蔵 mamushi no banzou, aka Banzou the Viper. The originator of the Justaway explosive. He used to work in a government officeverification/corroboration needed but got laid off due to company restructuring, and he became a terrorist in his bitterness. He started a factory, taking in displaced and bitter samurai who also wanted revenge. The factory acts as a front for the manufacture of Justaway, which is actually a bomb. Yamazaki Sagaru was sent here as a spy to uncover more about the mysterious Justaway in Episode 32. It turned out that the factory also manufactured heavy artillery like the Mamushi-Z laser canon.
Head of housekeeping, to instruct the female members in the household on their household duties. Has tendency to ill-treat juniors / newcomers, e.g. Shimura Tae (source: http://gintama.wikia.com/wiki/Otaki)
He is an assistant Kai in the rebellion.
She first appears as the woman who leaves a baby at the Yorozuya. It's later revealed that she's the mother of the baby (Kanshichirou) and she was running away from the Hashida who want to take the baby as the heir of the group.
During episode 106 while the Odd Jobs think they are helping Daisaku Amarao to make his last goal for his children, it was actually a goal to hit on Hana.
Appeared in episode 106, he is the star player of the F.C. Oedo. He wanted to score a goal on his retirement game showing that it was for a kid that looks like him but in the end of the episode it turned out that he was just scoring for a girl.