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