Ogino, whose full name is Katsuaki Ogino, is a supporting character in the anime Dead Dead Demon's Dededede Destruction. He is an adult Japanese man with black hair and black eyes, and his exact age is not stated in the available information. His defining trait is his office: he is the Prime Minister of Japan during the events of the story.

The story takes place in a Japan where a giant alien mothership has appeared over Tokyo and where the government has been unable to remove it, leaving the country in a lasting state of tension between factions that want to fight the aliens and factions that want to seek peaceful coexistence. As the head of the government, Ogino is positioned at the political center of that situation. His role in the story is therefore tied to the state's official response to the alien presence and to the domestic divisions that this crisis creates. He is not one of the main characters and enters the narrative primarily through his official duties rather than through personal storylines.

Reliable information about his personal history, personality, private motivations, individual relationships with other characters, any arc of personal development, and any notable personal abilities is very limited and not documented in the available material. Because of this, his basic profile and official role can be described, but the available information is insufficient to provide a fully comprehensive character description.