Yatsude Saburo

八手三郎 Yatsude Saburou.

This is probably not an actual person, but a pen name for a group of people. In Japan, his name is usually pronounced Yatsude Saburou, but there are times like in the Power Rangers where he's credited as Saburo Hatte. This pen name has existed as far back as the 70s (even being included on the Japanese Spiderman series).

In Hikounin Sentai AkibaRanger episode 12, he is the main antagonist, since the story had become a meta story about the characters in the show fighting off the creator trying to end the series.