Libby’s Crazy
What’s Libby’s story? She, with red hair, gives Desmond her husband’s boat after his death. Later she appears in Hurley’s past in the mental hospital, but he doesn’t remember she was there. What happened between those two time periods?
Non-People Characters
Who are these “people” that aren’t who they look like, on the island? After listening to Echo’s confession, the man he thought was his brother says, “You talk to me as if I am your brother.” Then there’s Hurley’s invisible friend who dropped a slipper. Additionally we’ve seen Jack’s father but he actually purports to be that person to Locke: “Tell my son …”. Then there’s Walt who appears now and again, soaked in Seasson 2, and then “taller” in Season 3 where he tells Locke to get up, move his legs, etc. In Season 5 when John finally meets Walt again in real life, neither of them mention the encounter which makes me wonder if that is Walt.
Walt Dizzy
Also, in regards to Walt, Season 2 implies he is special in some way and his step-father tells Michael: “things happen when he is around”. Ben also tells them that he has been a “more than they bargained for” and multiple snippets of dialog imply he teleports about. That would explain why he appears and disappears, but no one asks him about it and he never volunteers any information on it.
Chaaaaarlie’s Mistake
Charlie’s death was dramatic but unnecessary and practically suicide. He had plenty of time to pop out and shut the door, saving them both. Presumably he died to get Claire rescued, but Desmond’s vision said he saw her and Aaron get into a helicopter. Another explanation would be he saw a woman (Kate) take a/the baby into the chopper. As is usually the case, none of the characters approach this topic despite having been off the island for three years.
Monster Light
Locke sees the monster early in season 1 and is the first person to survive it, though of course he lies about encountering it. We can only imagine it is the smoke monster, given the same sounds being made, and the height at which it approaches him (we see through its eyes, not his). Later, in reference to this, he tells someone (Sawyer?) that he saw a “bright light” but anytime the audience glimpses the beast it is merely black smoke and little lightning bolts. However when Kate and Juliet are running from it and hide in a group of trees we do see a bright, white light shine onto their faces causing them to close their eyes but we don’t see the source of it.
Exit
If Whitmore knows where the island’s exit is, why didn’t he capture Ben? Or did he only figure out that was the exit after Ben came out of it? Ben tells Locke that “whoever moves the island can never return”, but he plainly has returned. Is that a source of contention or a forgotton plot device? Was Ben lying as usual?
Lamp Post
Daniel’s mother apparently now lives in a church at a Dharma station called the lamp post which can accurately predict where/when the island will be and how to get to it. Given Whitmore’s resources, how has this remained secret especially considering it’s a Dharma thing? What is her interest in it, how did she get there, why is it she knows so much about time travel, why isn’t she back in England selling jewelry, etc. ? Pendallum?