Matthew Fox has admitted that knowing secrets about Lost is "quite a power trip".
The 43-year-old actor, who has played Jack Shephard since the series started in 2004, is the only castmember who has been told by the producers what the final image of the series will be.
"It's going to be really beautiful and powerful, and I can't wait to see how we end up there," he said.
"Knowing stuff that the audience want to know... it's a quite a power trip, to be completely honest with you. But the truth is that nobody really wants to know. If you're reading a really good book - I don't know too many people who want to turn to the final page and find out how it ends."
"I really love the way [series five] ended because it felt like the board had been set, the pieces were in place.
"But when you have a show that makes people think as much as Lost; where you've made them hypothesise about what it all means and where it's all going on a plot level; ultimately you're going to disappoint them because they're going to want it to end a certain way, and it's going to end its own way."