From Pulau Tiga to the Pearl Islands, the most memorable players from the show's first seven editions compete for $1 million and bragging rights as the ultimate Survivor. The 18 castaways are divided into three tribes: Chapera; Saboga; and Mogo Mogo, named for islands off the coast of Panama where the latest game takes place. Among the contestants are four former winners (Richard Hatch, Tina Wesson, Ethan Zohn, Jenna Morasca) and one runner-up (Colby Donaldson).