So, I was watching the finale again, and I noticed something really odd about Haru.

Observe. Many many pictures ahead. Click them links

Here, Haru is next to his father and noone else:
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Here, he is next to Hakoda, and is that another Haru I see in the background, next to Bato's shoulder?
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Here, he has mysteriously vanished
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In this one, its not too clear, but could that be another Haru in the middle of the background?
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In the coronation scene, its a little confusing because I cant really make the characters out, but its possible that Haru is the one next the the water tribe guys, or right at the very end with the fire nation citizens
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Now here, there is someone next to him (you can see the elbow, its clearer in the show)
And finally, here he is, next to Hakoda!
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So, either Haru has started one helluva fashion trend in the Earth Kingdom, or a more sinister theory...

HARU IS AN ALIEN