Ensemble Kate Austen Jack Shephard James "Sawyer" Ford Claire Littleton Juliet Burke Ben Linus Desmond Hume Sayid Jarrah Hugo "Hurley" Reyes Sun Kwon Jin Kwon Richard Alpert Miles Straume MiB Frank Lapidus Charlie Pace John Locke Ana Lucia Cortez Shannon Rutherford Boone Carlyle Daniel Faraday Jacob Michael Dawson Charlotte Lewis
Aaron Littleton Penny Widmore The Monster Rose Nadler The Others Bernard Nadler Charles Widmore Vincent Oceanic 6 Mr. Eko Alex Rousseau Danielle Rousseau Libby Smith Ethan Rom Anthony Cooper Nikki Fernandez Paulo Mikhail Mr. Friendly (Tom) Karl Dr. Arzt Gault (Freighter Cap Ilana Pickett Naomi Keamy
Walt Lloyd Original Character Sarah Liam Pace Cassidy Annie Richard Malkin Helen Norwood Yemi Kevin Callis Christian Shephard Tom Brennan Nadia Dave Isabella