Chrissy Metz Talks About Possibility of Losing Weight Fast for 'This Is Us' Role

On last week's episode, the actress' character announced she was getting gastric bypass surgery.

Chrissy Metz says she's ready to lose the weight right along with her character, Kate, on This Is Us.

On Thursday's episode of The Ellen DeGeneres Show, the breakout TV star opens up about Kate's struggle with her size, and how she mentioned in an earlier interview that her contract has a clause that she's to "lose the weight in the trajectory of the character as she comes to find herself."

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"Like most actors, we are chameleons. Like, Christian Bale lost all that weight for The Machinist," Metz explains, referring to when the actor dropped over 60 pounds for his 2004 role. "So I was like, 'Oh, I hope I get to lose the weight!' It's a win-win for me -- motivation in a different way this time."

The 37-year-old actress clarifies that her losing weight "wasn't mandated," but "if this is the storyline, naturally you would lose weight."

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"I'm excited if that should happen," she adds.

On last week's Thanksgiving episode of This Is Us, Kate announced to her family that she's decided to get gastric bypass surgery. DeGeneres notes that such a procedure would mean that Metz's character would be dropping the weight rather quickly.

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"It is a fast fix and it isn't always the answer," the actress responds, adding that Kate might not go through with it. "I can't give it away too much. ...Who knows?"

Metz recently spoke with ET about the overnight success of This Is Us, and why her character resonates with so many viewers.

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“I think everyone has shame about something, whether it’s a lack of a relationship with a child or maybe their weight or a lack of communication within their marriage,” she said. “Everyone can relate to that because we all have something that we’re like, ‘God, I can work on that or I wish I was better at doing this.’”