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This Is Us, our new favorite TV guilty pleasure, never fails to pull at our tender heart strings week after week. But just when we thought we reached the tip of our emotional iceberg, we have now learned that the hilarious Toby, played by Chris Sullivan, wears a fat suit and prosthetic jowls for filming. We'll wait while you let that sink in.

Check out this drastically different image of Sullivan alongside co-star Chrissy Metz IRL. Yeah, no idea how we missed this either.

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