Matthew Fox Dr. Jack Shephard Actor Evangeline Lilly Kate Austen Actor Ian Somerhalder Boone Carlyle Actor Dominic Monaghan Charlie Pace Actor Jorge Garcia Hugo "Hurley" Reyes Actor Maggie Grace Shannon Rutherford Actor Malcolm David Kelley Walt Lloyd Actor Naveen Andrews Sayid Jarrah Actor Harold Perrineau Michael Dawson Actor Josh Holloway James "Sawyer" Ford Actor Terry O'Quinn John Locke Actor Daniel Dae Kim Jin Kwon Actor Kim Yun-jin Sun Kwon Actor John Terry Dr. Christian Shephard Guest Star William Mapother Dr. Ethan Rom Guest Star Jackie Maraya Andrea Guest Star Mark Stitham Head Doctor Guest Star Michael Adamshick Anesthesiologist Guest Star Matt Moore Husband Guest Star J.J. Abrams Executive Producer Damon Lindelof Executive Producer Bryan Burk Executive Producer Javier Grillo-Marxuach Writer Stephen Williams Director