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