Season 4 (Lost)

This article contains episode summaries for the fourth season of Lost.

Summary
In the U.S., original episodes of season four aired between January 31, 2008 and May 29, 2008.

Principal Cast

 * Naveen Andrews as Sayid Jarrah
 * Henry Ian Cusick as Desmond Hume
 * Jeremy Davies as Daniel Faraday
 * Emilie de Ravin as Claire Littleton^
 * Michael Emerson as Benjamin Linus
 * Matthew Fox as Jack Shephard
 * Jorge Garcia as Hugo "Hurley" Reyes^
 * Josh Holloway as James "Sawyer" Ford^
 * Daniel Dae Kim as Jin-Soo Kwon^
 * Yunjin Kim as Sun-Hwa Kwon
 * Ken Leung as Miles Straume
 * Evangeline Lilly as Kate Austen
 * Rebecca Mader as Charlotte Lewis
 * Elizabeth Mitchell as Juliet Burke^
 * Terry O'Quinn as John Locke^
 * Harold Perrineau as Michael Dawson