Sandra Diaz-Twine
Sole Survivor of Survivor: Pearl Islands (Season 7: 2003) and Survivor: Heroes Vs. Villains (Season 20: 2010), Survivor: Game Changers (Season 34: 2017)
Sandra is theonly two-time winner in Survivor (U.S.) history.
In Pearl Islands", after controlling the Drake tribe along with allies Rupert Boneham and Christa Hastie, Sandra made it to the merge where her alliance was eventually overthrown. However, she was then able to manoeuver herself through the game between the alliances to eventually make it to the end and win.
Sandra later returned for Heroes vs. Villains as a member of the Villains tribe. Being practically invisible early on, Sandra's alliance was overthrown by Russell Hantz. Despite this, Sandra again proceeded to demonstrate her adaptability in the face of long odds, and was able to manipulate and deceive the majority alliance into blindsiding Coach Wade in order to save her closest ally, Courtney Yates. Sandra made it to the merge despite Courtney's eventual elimination, but was rebuffed in her efforts to work in concert with the Heroes' alliance. After finding a Hidden Immunity Idol and being viewed as no threat at all, Sandra made it to the end. Through her previous social relationships and the Heroes' overall disdain for fellow finalists Hantz and Parvati Shallow, Sandra became the series' first two-time winner.
Despite entering Game Changers with a huge target for winning two times prior, Sandra managed to control the first few votes. However, a second tribe switch lost her her iron-fist control of the game, and she was quickly taken out for being too huge of a threat.
(Source: Survivor Wiki)