After he leaves to travel the galaxy hunting aliens, he's next heard from in the form of a letter. He tells Kagura that Sadaharu is also a monster they should get rid of. He becomes the leader of the "Principality" in the anime, recruited by a Char Aznable doppelganger. In the manga, he's recruited by a Darth Vader lookalike.
Later in the manga and anime series. He also participated in a hair growing shampoo advertisement which the Yorozuya complained that the advertisement is too long.
Seiyuu: Hayami Shou