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