Charlie begins a painful journey of withdrawal from drugs, surprisingly aided by Locke, whose true motive for helping Charlie is a mystery. Meanwhile, survivors struggle to find and free Jack when he's buried alive in a cave collapse, and someone might be secretly thwarting Sayid, Kate, and Boone when they enact a plan to find the source of the French transmission.
Matthew Fox
Jack Shephard
Terry O'Quinn
John Locke
Josh Holloway
James Sawyer
Michael Emerson
Benjamin Linus
Jorge Garcia
Hurley Reyes
Naveen Andrews
Sayid Jarrah
Henry Ian Cusick
Desmond Hume
Yunjin Kim
Sun-Hwa Kwon
Daniel Dae Kim
Jin-Soo Kwon
Ken Leung
Miles Straume
Zuleikha Robinson
Ilana Verdansky