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Professor Hyakkoi (ヒャッコイ博士 Hyakkoi Hakase) is a character from the movie Doraemon: Nobita's Great Adventure in the Antarctic Kachi Kochi.
He is an old man who is half bald with a white hair and a mustache. He wears a green shirt and has some purple goggles.
- His face has little similarities with Principal Teraodai