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Gerald Martin Johanssen is Arnold's best friend from the Nickelodeon animated series Hey Arnold! He is almost always on the scene when Arnold's latest escapade happens. He is the occasional voice of reason to Arnold and also has a good deal of knowledge of many legendary stories in the city, or "urban legends" as he calls them.
|This article about a character from either a Christmas movie, television episodic series or special with a Christmas theme is a stub. Please help to expand this article in the Christmas Specials Wikia.|