ABC has revealed the identities of the final four players competing on The Mole's fifth season, which will premiere Monday, June 2 at 10PM ET/PT.

Hosted by former Extra weekend anchor Jon Kelley, The Mole's revival will follow the show's original format, with a group of 12 contestants competing in new missions at new locations while trying to determine who among them is The Mole -- a saboteur trying to keep them from winning money in the game. 

Throughout the competition, the contestants must decide who they think is serving as The Mole and try to learn as much about him or her as possible.  At the end of each one-hour episode, the player who knows the least about The Mole will be eliminated from the game. 

At the conclusion of The Mole's 10-episode run, the contestant serving as the saboteur will be revealed and one of the final two contestants will win a "substantial cash prize," according to ABC.

The previously announced first eight players participating in The Mole are Kristen, a 35-year-old neuroscientist from Santa Monica, CA; Clay, a 32-year-old criminal litigation attorney from Philadelphia, PA; Paul, a 29-year-old machinist from Yonkers, NY; and Victoria, a 26-year-old retail manager from Bishop, TX; Nicole, a 32-year-old OBGYN doctor from Chicago, IL; Ali, a 24-year-old model from St. Louis, MO; Bobby, a 25-year-old restaurant manager from Philadelphia, PA; and Mark, a 42-year-old high school history teacher and soccer coach from Mukwonago, WI.

The final batch of four players participating in The Mole -- and their ABC-supplied bios -- are:

Liz, a retired 60-year-old from Whitefish, MT

Liz has more energy than people half her age, lives life to the fullest and doesn't let age stand in her way. Nor will she hesitate to shock people with her outlandish sense of humor. When Liz' husband passed away, she decided to adopt two children and raise them on her own. She has an 18-year-old daughter, a senior in high school, and a 20-year-old son in the army, who recently gave her a grandchild. Her son may be deployed to Iraq at any time. She suffers a bit from the empty nest, so she's eager to have this adventure to bring some excitement into her life. Liz feels that her age will be an asset in the game because with age comes wisdom, especially when dealing with younger people.

Marcie, a 31-year-old stay-at-home mom from Corona, CA

Marcie got pregnant in high school, married her high school sweetheart and is a devoted wife and mother of three sons. Married to a police officer, she devotes her entire life to raising her family, but sometimes feels she has missed out on the opportunity to do something just for herself. She believes stay-at-home moms have the most important jobs anyone can have; they're not people who can't do anything else, they just choose to raise their families rather than pursue a career. Playing this game will be Marcie's big adventure and an opportunity to prove she is more than "just a mom." She feels that others will underestimate her, and she'll use that to her advantage. Spanish is her first language and she speaks it fluently.

Alex, a 31-year-old musician from Haverford, PA

Alex grew up in the suburbs outside Philadelphia and has been drawn to music his whole life. In high school he was president of the jazz band, and now he's an aspiring musician, the lead guitarist for a fledgling rock band. He doesn't want to compromise his musical aspirations, so he works odd jobs and lives at home with his parents while waiting for his big break. He says he communicates best through his music. He plans on bringing his guitar to help entertain his fellow players with a song he wrote especially for The Mole. His strategy is to be the "nice guy," but he says he can play dirty if he needs to. He learned to speak Spanish from his mother and lived in Costa Rica for five years. He considers himself an expert marksman.

Craig, a 301-year-old graphic designer San Diego, CA

Craig has been overweight his entire life so he developed a sense of humor in order to make friends. He's a lovable prankster with a big heart, and his magnetic personality has gotten him through life. Craig plans on using his endearing nature and non-threatening appearance to win the players' trust and then manipulate them. He knows his physical limitations, but says this can be an asset in the game because everyone will underestimate him. He hopes to surprise people with his abilities. Craig has sleep apnea, so he has to sleep with a special machine to help him breathe. Craig has traveled extensively and worked as a humanitarian disaster relief aide worker in Turkey and Thailand.