Ensemble Kate Austen Jack Shephard James "Sawyer" Ford Claire Littleton Ben Linus Juliet Burke 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 Charlotte Lewis Jacob Michael Dawson
Aaron Littleton Penny Widmore The Monster Oceanic 6 Vincent Rose Nadler The Others Bernard Nadler Charles Widmore Mr. Eko Alex Rousseau Danielle Rousseau Libby Smith Ethan Rom Paulo Mikhail Mr. Friendly (Tom) Karl Dr. Arzt Gault (Freighter Cap Ilana Pickett Anthony Cooper Nikki Fernandez Naomi Keamy
Walt Lloyd Original Character Sarah Liam Pace Cassidy Annie Richard Malkin Helen Norwood Yemi Kevin Callis Christian Shephard Tom Brennan Dave Isabella Nadia