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