Survivor is doing something unprecedented for season 40. No, it's not the same type of first-time vents like those that occurred in season 39, Survivor: Island of the Idols, but season 40 will have a cast full of past winners.

For Survivor: Winners at War, the CBS reality show is bringing back 20 past winners to battle it out for an even bigger prize: $2 million. Among the cast are Survivor: Island of the Idols mentors Boston Rob Mariano and Sandra Diaz-Twine, Survivor: Africa's Ethan Zohn and Boston Rob's wife, Amber Mariano.

"I was diagnosed with Hodgkin's lymphoma," Ethan said in the trailer for the new season. "It is a miracle that I am sitting here today."

"Coming back out here, I can feel my blood starting to rise," Parvati Shallow said.

In addition to the bigger prize, season 40 will have the Edge of Extinction twist, first introduced in season 38, and feature Survivor's own brand of currency dubbed fire tokens. These tokens let players buy items, food and advantages. With the Edge of Extinction twist, players on the edge can still earn the new money, but when they're sent over, they will have to give all their money and advantages to another player and start from scratch.

 "It's the biggest battle in Survivor history," longtime host Jeff Probst teased in the trailer released for the new season.

Meet the cast below.

Survivor Season 40, Sarah Lacina

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Survivor Season 40, Parvati Shallow

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Survivor Season 40, Natalie Anderson

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Survivor Season 40, Nick Wilson

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Survivor Season 40, Michele Fitzgerald

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Survivor Season 40, Kim Spradlin

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Survivor Season 40, Jeremy Collins

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Survivor Season 40, Ethan Zohn

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Survivor Season 40, Sophie Clarke

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Survivor Season 40, Tony Vlachos

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Survivor Season 40, Tyson Apostol

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Survivor Season 40, Adam Klein

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Survivor Season 40, Amber Brkich

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Survivor Season 40, Yul Kwon

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Survivor Season 40, Wendell Holland

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Survivor Season 40, Ben Driebergen

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Survivor Season 40, Danni Boatwright

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Survivor Season 40, Denise Stapley

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Survivor Season 40

CBS

Survivor Season 40

CBS

Survivor: Winners at War will premiere Wednesday, Feb. 12, 2020 on CBS. This season, which was shot before CBS announced new policies for gameplay behavior, CBS said "the show added to its pre-production cast orientation specific guidelines regarding personal space, inappropriate behavior, and how to report these issues."

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