Throughout Sayonara Zetsubou Sensei, there's a picture (not animated) of a bald man's face that appears randomly (often as a censor). Who is he and what is his relation to the show (or their creators)? Does he randomly appear in other Studio SHAFT shows?

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2 Answers 2


He is Kosaku Maeda, and his nickname is MAEDAX, he was the voice actor for several minor parts in the show (including playing himself, credited as MAEDAX) and also worked on the manga.

Here is his picture on Anime news network.


He is the mangaka's assistant, Maeda-kun.

From the TVTropes page Manga: Sayonara, Zetsubou-Sensei:

Fan Disservice: Some fanservice scenes can be a little awkward when they're censored by the face of Maeda-kun, Koji Kumeta's assistant, who sometimes is even facepalming disapprovingly. Shame on you.

  • Found the answer in a number of blog posts on the topic. Quoted TVTropes page above. Let me see if I can find a more reliable source.
    – Masked Man
    Feb 28, 2013 at 13:16

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