• Series creator, Dan Fogelman, knows how the show will end.

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• This Is Us was initially envisioned as a movie.

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• Mandy Moore is the youngest core cast member, despite playing one of the oldest characters. 

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• This Is Us wasn't the original title.  It was originally called 36, which is the age they're all turning at the beginning.

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• In the show, Mandy Moore plays Chrissy Metz's mother. In reality, Chrissy is four years older than Mandy. 

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• The show created extra security measures to ensure that details of Jack's deaths didn't leak. 

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• Writers incorporated Kate's love for singing after discovering Chrissy Metz's voice. 

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• Season premieres always take place on The Big Three's birthday. 

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• That 2018 Super Bowl episode included actual footage of Super Bowl LII. 

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• Caitlin Thompson, who plays Madison, is the wife of Dan Fogelman, the creator of the show.