You don't want to be this guy. Middle Aged Dumb-Ass Oldie, or MADAO (occasionally known by his birth name Taizo Hasegawa). At the beginning of the series, he worked as a government official, but lost his job, wife, and home. Thus having lost his edge and become mellow, begins his true calling as a MADAO. MADAO is kind to a fault but things never go his way. He is defined by his sunglasses.
MADAO had a cameo appearance in the Sentai Filmworks dub of the Benizakura compilation movie. Though credited to Christopher Ayres, this is likely a mistake - his proper VA seems to be Andrew Love, who is elsewhere in the movie. MADAO would later get a bigger role in the Ocean dub of the 2015 series, where he was voiced by Ted Cole. In the 2019 Hulu dub of the first Gintama series, Chris Jahn played MADAO.