Jorge Garcia missed his sister's wedding to shoot this show in Hawaii.

The first season depicts the first 44 days on the island. Locke mentions this when talking to Desmond inside the hatch.

ABC opted not to fly the intact N783DL to Hawaii first before dismantling it. Instead, ABC dispatched 40 production workers to Mojave to cannibalize and ship the aircraft pieces. Dismantling took about 5 days in February 2004.

The Airline in this show that flew the ill-fated flight is called "Oceanic" this Airline name has been used before in Executive/12/20ision, and has also been used in many other made-for-TV movies.

The airplane pieces on the beach, depicting the doomed flight from Sydney, are the remnants of a Lockheed Tristar L-1011. She began service for Eastern Airlines (N308EA) in 1972 and was retired by Delta Airlines (N783DL) in 1998 having racked up a total of 28,822 landings and 58,841 flight-hours.

N783DL was bought by Thompson's Aviation Warehouse (Mojave, CA) for $50,000. ABC/Touchstone purchased it for about $200,000.

The first episode debuted on ABC with 18.65 million viewers. The second episode attracted 16.33 million viewers.

Hurley uses the numbers 4, 8, 15, 16, 23, and 42 to win the lottery. During the season 1 finale, as Hurley drives to the airport, the numbers appear on the dashboard as the car stalls. Running to the gate, he passes a girl's soccer team with the same numbers on their uniform jerseys. They also appear on the hatch exterior and the vial Desmond uses for injection.

Jennifer Jason Leigh was approached to play the part of Libby, but she/12/20lined

Adewale Akinnuoye-Agbaje came up with his own characters name, "Mr. Eko", while he and the writers were developing the character.

Yoon-jin Kim originally read for the character of Kate. The producers felt she was not what they were looking for but/12/20ided to create a new character for her along with her character's spouse.

During Charlie's snorting scenes, Dominic Monaghan is actually snorting brown sugar.

Charlie's shoulder tattoo reads "Living is easy with eyes closed". This is a lyric from the song "Strawberry Fields Forever" by The Beatles.

The rocks used in the waterfall cave set are made of rubber so that the sound of the actors, and crew members walking about are not picked up on camera.

The part of Charlie was originally written for someone much older, but when Dominic Monaghan auditioned, the writers and producers loved him so much that they set about re-writing the part to Dominic's strengths.

Plane wreckage scenes were filmed at Mokuleia Beach.

The majority of post-pilot beach scenes are filmed along a more remote, secluded stretch of Oahu's famous North Shore. The sandy shoreline is not private but the access is off the beaten path.

Jungle scenes depicting open, grassy pasture areas at the foot of jagged cliffs were filmed in Kaaawa Valley (first season).

Mokuleia Beach is near Oahu's northwest tip (Kaena Point). Kaaawa Valley is over 30 miles away on the island's eastern coast.

The sound stage where the cave scenes are filmed is at the old Xerox building.

Vincent, the dog, is actually played by a female dog, whose name is Madison.

The symbol that Claire wears around her neck is the Japanese kanji for "love".

The symbol on Boone's shirt is the Chinese symbol for the number 84. Reversed the number is 48, The exact number of Survivors when the plane first crashed.

Ian Somerhalder was the first actor to be cast as one of the survivors.

The shirt that Sawyer wears that has a fish on it is from an actual restaurant. One of the show's creators went to Humpy's in Alaska and liked the logo so much he wanted to use it on the show. They didn't get permission to use it until much later so they took the logo from the site and made their own. No one at Humpy's knew how it got onto the show until much later.

ABC picked up the show before there even was a script. J.J. Abrams and Damon Lindelof had only turned in an outline and based on this ABC picked up the show.

James Cash lost the part of Jack Shepherd to Matthew Fox at the final auditions.

Continuity error: When Boone is ragging on Shannon for not helping move the camp up the beach due to the high tide, he was wearing a very sweaty t-shirt with the Chinese eight-ten-four characters on the front. Moments later, with no time to change, the shirt has changed.

Continuity error: When Ana drops the gun and the machete, they are dropped straight down, but when they land at Sayid's feet, they are crossed.