Survivor: Redemption Island

A former Marine, two NFL veterans and an ex-beauty queen are among the contestants on Survivor: Redemption Island.

CBS revealed 16 of the 18 players Monday and will unveil the remaining castaways — two former competitors — later this week.

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The crop of 16 includes Ashley Underwood, a 25-year-old nurse who represented Maine in the 2009 Miss USA pageant; Steve Wright, who played on the same Dallas Cowboys team as Survivor: Guatemala's Gary Hogeboom; and Grant Mattos, most recently a Tennessee Titans wide receiver. Others include former Marine Andrea Boehlke, farmer Ralph Kiser, and three contestants working in or studying law: Francesca Hogi, Kristina Kell and David Murphy.

The youngest contestant is 19-year-old dancer Natalie Tenerelli, while 52-year-old technology executive Philip Sheppard is the oldest.

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Besides the two returning castaways, Season 22 of the CBS hit features Redemption Island, where players are sent after being voted off and compete in duels. The winner will then get to stay on Redemption Island and continue dueling with the rest of the eliminated participants. Toward the end of the game, the Redemption Island victor will be allowed to re-enter the game and compete for the $1 million prize.

Click here to meet all the new castaways.

Survivor: Redemption Island premieres Wednesday, Feb. 16 at 8/7c on CBS.