Hoban "Wash" Washburne is played by Alan Tudyk. Wash serves as the pilot of Serenity, and is married to the ship's first mate, Zoe. He is only ever referred to as "Wash", the first syllable of his surname. When Mal confronts him in the Serenity film novelization, Wash's reasoning is "Why would anyone call themselves Hoban?" He grew up on a planet whose atmosphere is so polluted that no stars are visible. He claims to have spent time on a moon whose principal form of entertainment is juggling geese, both of which he mentions in the episode "Our Mrs. Reynolds". A laid-back guy with a dry and occasionally laconic sense of humor, Wash tends to represent the pragmatic, cut-and-run opinion in any shipboard debate, and often serves as the calming influence in heated arguments. His actions sometimes appear cowardly, but Wash has proven his resolve and willingness to put himself in harm's way and do violence on behalf of his friends on many occasions.

     Raised on an unnamed polluted planet, Wash became a pilot in part to see the sky beyond his home. Wash's pilot skills were actively courted by multiple captains when he met Malcolm Reynolds. Wash accepted Mal's offer and eventually fell in love with and married Reynolds' second-in-command, Zoe.

     Wash dies near the end of the 2005 film Serenity when a harpoon launched by a Reaver ship impales him, killing him instantly. His last words are "I am a leaf on the wind, watch how I..." (the final word "soar" is cut off by his being impaled). His shipmates erect a memorial to him (it is unclear if this is a tomb as well) on Mr. Universe's moon. As a tribute to Wash, his collection of toy dinosaurs remains on the pilot's station of the bridge.

(From Wiki)