Nikki

Nikki is a guest in Season 2. She was killed after her partner, Michael, fails to find the dungeon trapping Nate, getting 11th place

Biography
Nikki was a selfish and pretty person. She tried to save Lexter but failed after she broke her nail. She was in on the big alliance, but it ultimately didn't save her because she made an enemy with Lexter and his ally Joker after she failed to free him from the chains. Plus Kris believed she was in trouble so she flipped her vote which saved her but caused Nikki to be sent into the duel, who picked Michael over Frank just because she thought he was more trustworthy.