Matthew Fox as Jack Shephard
At first, Jack seemed to have it all together and because of that became the reluctant leader of the plane crash survivors.
Evangeline Lilly as Kate Austen
Kate was on Flight 815 being escorted by a Marshal after being on the run for killing her father.
Josh Holloway as Sawyer
James Ford was eight years old when a con man stole his parents' money. His father shot his mother and then himself.
Terry O'Quinn as John Locke
Locke spent his childhood in foster homes. He later found his father, who made friends with him, only to steal his kidney.
Jorge Garcia as Hurley
Hurley believes he is cursed by the numbers 4, 8, 15, 16, 23, 42 after he used them and won the lottery.
Yunjin Kim as Sun Kwon and Daniel Dae Kim as Jin-Soo Kwon
Sun was a lonely housewife who wanted to get away from her husband, Jin, but ended up staying with him.
Naveen Andrews as Sayid Jarrah
Before crashing on the island, Sayid was in the Republican Guard and learned how to torture people.
Emilie de Ravin as Claire Littleton
Young, pregnant Claire was on her way to meet the couple who was going to adopt her baby when Flight 815 crashed.
Henry Ian Cusick as Desmond Hume
Desmond was racing around the world on a sailboat, but he hit bad weather and washed up on The Island.
Michael Emerson as Ben Linus
Ben seems to be the leader of the Others and is generally accepted as a bad guy, but he has had some sympathetic moments.
Kate was iconic, too
I was never a big fan of any of the male actors besides Locke.
I still like them all, but just never was a "huge fan".
My other favorites were probably Sayid or Desmond, though.
I also wish Michelle Rodriguez was on for more than one season, Analucia was my fave
