Enzo and Annie, <i>Big Brother 12</i> Enzo and Annie, Big Brother 12

 An oil rig salesman, a podiatrist and a college professor are among the 13 houseguests moving in for Big Brother 12.

CBS revealed the cast of its guilty pleasure Wednesday morning. Others taking part in what CBS dubs the "Summer of Sabotage" include a bartender, a model and a chemistry graduate student who is also a VIP cocktail waitress.

See photos of all the new Big Brother 12 houseguests

In a The Mole-inspired twist, one of the 13 houseguests will be revealed to be "The Saboteur" during the first live eviction show on Thursday, July 15. The player will not try to win the $500,000 grand prize, but will instead disrupt the lives of the other houseguests. He or she can win cash by getting to at least the halfway point in the game.

Big Brother, hosted by Julie Chen,  features contestants who live in a camera-rigged house and have their lives taped 24 hours a day as they compete, fight, and occasionally sleep together.

Big Brother adds new twist to Season 12

The show's new season kicks off Thursday, July 8 at 8/7c on CBS.

Check out the full cast and meet them all in the video below. Who looks like a winner?

Kristen Bitting, a 24-year-old shoe boutique manager from Philadelphia
Lane Elenburg, a 24-year-old oil rig salesman from Decatur, Texas
Ragan Fox, a 34-year-old college professor from Los Angeles
Andrew Gordon, a 39-year-old podiatrist from Miami Beach, Fla.
Britney Haynes, a 22-year-old hotel sales manager from Huntington, Ark.
Kathy Hillis, a 40-year-old deputy sheriff from Texarkana, Ark.
Matt Hoffman, a 32-year-old web designer from  Elgin, Ill.
Hayden Moss, a 24-year-old college student from Tempe, Ariz.
Enzo Palumbo, a 32-year-old insurance adjuster from Bayonne, N.J.
Rachel Reilly, a 26-year-old chemistry graduate student/VIP cocktail waitress from Las Vegas
Monet Stunson, a 24-year-old model from Glen Carbon, Ill.
Brendon Villegas, a 30-year-old high school swim coach from Riverside, Calif.
Annie Whittington, a 27-year-old bartender from Tampa, Fla.