The celebration of Jack's return is cut short when he arrives at the beach with an Other, Juliet, whose flashbacks pick up from where they left off, showing us how she got onto the island and became an other. Meanwhile, Claire is threatened by a strange illness.
Elenco: Naveen Andrews , Matthew Fox , Josh Holloway , Daniel Dae Kim , Evangeline Lilly , Terry O'Quinn , Emilie de Ravin , Michael Emerson , Henry Ian Cusick , Kim Yoon-jin , John Terry , Sonya Walger , Cynthia Watros , Rebecca Mader , Fionnula Flanagan , Maggie Grace , Jeremy Davies , François Chau , L. Scott Caldwell , Ian Somerhalder , Elizabeth Mitchell , Sam Anderson , Dominic Monaghan , Zuleikha Robinson , Nestor Carbonell , Jeff Fahey , Jorge Garcia , Ken Leung , L. Scott Caldwell , M.C. Gainey , Mark Pellegrino , Michelle Rodriguez , Mira Furlan , Nestor Carbonell , Rebecca Mader , Rodrigo Santoro , Sam Anderson , Sonya Walger , Tania Raymonde , Titus Welliver , Zuleikha Robinson .