The Main characters of the ABC series, Lost were often featured in the starring cast of the season they starred in. However, certain characters were either featured in the starring cast for the episodes they appeared in, from a certain episode onwards, or for only a certain amount of episodes before being dropped.
Main Characters by Season[]
| Character | Actor/Actress | Season 1 | Season 2 | Season 3 | Season 4 | Season 5 | Season 6 | Main seasons | Recurring seasons | Guest seasons |
|---|---|---|---|---|---|---|---|---|---|---|
| Sayid Jarrah | Main | Main | Main | Main | Main | Main | 1-6 | |||
| Shannon Rutherford | Main | Main | Main | Main | Main | Main | 1-6 | |||
| Jack Shepard | Main | Main | Main | Main | Main | Main | 1-6 | |||
| Sun-Hwa Kwon | Main | Main | Main | Main | Main | Main | ||||
| Jin-Soo Kwon | Main | Main | Main | Main | Main | Main | ||||
| Claire Littleton | Main | Main | Main | Main | Main | Main | ||||
| Michael Dawson | Main | Main | Main | Main | Main | |||||
| James "Sawyer" Ford | Main | Main | Main | |||||||
| Charlie Pace | Main | Main | ||||||||
| Boone Carlyle | Main | Main | ||||||||
| Kate Austen | Main | Main | ||||||||
| John Locke | Main | Main | Main | Main | ||||||
| Walt Lloyd | Main | Main | ||||||||
| Hugo "Hurley" Reyes | Main | |||||||||
| Ana Lucia | Guest | Main | Main | Main | Main | |||||
| Mr. Eko | Main | Main | ||||||||
| Elizabeth "Libby" Smith | Main | Main | ||||||||
| Paulo | Main | Main | Main | Main | ||||||
| Desmond Hume | Main | Main | Main | Main | ||||||
| Benjamin Lunus | Main | Main | Main | |||||||
| Nikki Fernandez | Main | Main | ||||||||
| Juliet Burke | Main | |||||||||
| Daniel Faraday | Main | Main | Main | |||||||
| Charlotte Lewis | Main | Main | Main | |||||||
| Miles Straume | Main | Main | Main | |||||||
| Richard Alpert | Main | |||||||||
| Illana Verdanskey | Main | |||||||||
| Frank Lapidus | Main |