'The Variable' by Edward Kitsis and Adam Horowitz

The time of reckoning has begun when Daniel Faraday comes clean regarding what he knows about the island...

Matthew Fox (Doctor Jack Shephard), Evangeline Lilly (Kate Austen), Jorge Garcia (Hugo ‘Hurley’ Reyes), Josh Holloway (James ‘Sawyer’ Ford), Yunjin Kim (Sun Kwon), Daniel Dae Kim (Jin), Naveen Andrews (Sayid Jarrah), Terry O'Quinn (John Locke), Henry Ian Cusick (Desmond Hume), Michael Emerson (Ben Linus), Elizabeth Mitchell (Juliet Burke), Jeremy Davies (Daniel Faraday), Ken Leung (Miles Straume), Nestor Carbonell (Richard Alpert), Sonya Walger (Penelope 'Penny"' Widmore), Alan Dale (Charles Widmore), Francois Chau (Doctor Pierre Chang), Fionnula Flanagan (Eloise Hawking), Patrick Fischler (Phil), Eric Lange (Radzinsky), Sarah Farooqui (Theresa), Alice Evans (Younger Eloise Hawking), Wendy Pearson (E.R. Doctor), Todd Coolidge (Paramedic), Peggy Anne Siegmund (Caretaker), Jennifer Sojot (E.R. Nurse), Spencer Allyn (Young Daniel Faraday), Michael Dempsey (Foreman), Maya Henssens (Young Girl), Ariston Green (Workman), Marvin DeFreitas (Young Charlie), Brad Berryhill (Anxious Guy)

Directed by Paul Edwards
Produced by Sarah Caplan
Executive Producers J.J. Abrams, Damon Lindelof, Bryan Burk, Carlton Cuse, Jack Bender, Edward Kitsis and Adam Horowitz

TX (US): 29th April 2009

Notes:
*Featuring Jack, Kate, Locke, Sayid, Sawyer, Hurley, Sun and Jin

*This is the one hundredth episode of the series