If you're wondering if Malcolm David Kelly will be reprising his role as Walt on Lost during season five, TV Guide has some news for you. According to their latest column, Kelly recently filmed an episode of Lost that is set to air February 25.
Now, will Walt have to return to the Island like the Oceanic Six? Accoridng to Michael Emerson, "The writers would say that Walt ... left the island at a time that wasn't key. It's not just about the six who left; it's about when and how they left." Well I guess not then.