Here is an interesting screen shot from the pilot episode. . You don't see Claire (far left) who originally had on a white shirt, but took it off to show the black shirt.This is the first time they see/hear the smoke monster. Jack and Kate are talking,they hear smoke monster..flash to John, than Michael, then Shannon/Boone. Show Kate and Jack (both in light shirts) Sayid and Charlie (in dark clothes) All the main characters get up and arrange themselves at the edge of the beach in a strange way, with Claire, Sayid, Charlie, Locke on the left (dark) Jack, Kate, Michael, Sun and Jin, Walt Sawyer and Hurley on the right (light). Kind of cool how that scene played out. :)