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Lesser-Known Hollywood Siblings

31 of 50

Dan Heder

Famous sibling: Jon Heder

This guy is the spitting image of Napoleon Dynamite himself, and for good reason—it's his twin brother! Jon and Dan also have an older sister and brother, as well as two younger brothers. —XFINITY Entertainment Staff (Photo: Vince Bucci/Getty Images)

The opinions expressed are solely those of the author and do not necessarily reflect the views of Comcast.

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