| Naveen Andrews | Sayid Jarrah
(credit only) |
| Nestor Carbonell | Richard Alpert
(credit only) |
| Henry Ian Cusick | Desmond Hume
(credit only) |
| Emilie de Ravin | Claire Littleton
(credit only) |
| Michael Emerson | Ben Linus
(credit only) |
| Jeff Fahey | Frank Lapidus
(credit only) |
| Matthew Fox | Dr. Jack Shephard
(archive footage) |
| Jorge Garcia | Hugo 'Hurley' Reyes
(credit only) |
| Josh Holloway | James 'Sawyer' Ford
(credit only) |
| Daniel Dae Kim | Jin-Soo Kwon
(credit only) |
| Yunjin Kim | Sun-Hwa Kwon
(credit only) |
| Ken Leung | Miles Straume
(credit only) |
| Evangeline Lilly | Kate Austen
(archive footage) |
| Terry O'Quinn | John Locke
(archive footage) |
| Zuleikha Robinson | Ilana Verdansky
(credit only) |
| Kenton Duty | Young Jacob |
| Allison Janney | Mother |
| Lela Loren | Claudia |
| Mark Pellegrino | Jacob |
| Titus Welliver | Man in Black |
| Ryan Hanson Bradford | Boy in Black
(as Ryan Bradford) |
| Ivo Nandi | Oldest Hunter |