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