As far as we know, Walt is still alive in the regular time-line. He is living off-island.
Malcolm David Kelley
The last time we saw Walt Lloyd off the island was in the Season 5 episode titled "The Life and Death of Jeremy Bentham." In that one, an older and taller Walt was visited outside the New York school he attended by a wheelchair-bound John Locke. Walt and his father, Michael Dawson, left the island in a motor boat provided by the Others in the Season 2 finale "Live Together, Die Alone." After returning to the United States, Walt lived with maternal grandmother in New York. Walt, who was 10 years old when Oceanic Airlines Flight 815 crashed on the island on Sept. 22, 2004, had special qualities and premonitions. Long after Walt left the island, some survivors who remained saw apparitions of him.
He lost him because his company was running low on money and a distributor took Oswald.
Walt Disney and Ub Iwerks came up with Mickey Mouse after they lost the rights to Oswald the Lucky Rabbit in 1928.
No. Walt does briefly place a hit on Jesse, but the men Walt is working with kidnap him and force him to make meth instead. Walt later saves Jesse from the same people.
It belonged to Walt
Walt Harper died in 2006.
Walt Miller died in 2001.
Walt Ripley died in 1990.
Walt Bachrach died in 1989.
Walt Horan died in 1966.
Walt Morey died in 1992.
Walt Dixon died in 2003.
Walt Coburn died in 1971.
Walt Willis died in 1999.
Walt Palmer died in 1985.
Walt Kinney died in 1971.