Main Characters

• Starring Seasons: 1, 2, 3, 4 & 5

Kate was aboard Oceanic Flight 815 after being extradited to the United States when she was captured after being on the run for 3 years. Kate had lived abroad evading the police at any cost, however; she was finally apprehended when she was turned in by a man in Sydney.

• Starring Seasons: 3, 4 & 5

Juliet was previously married to a man named Edmund Burke, after their divorce, Juliet continued to work for his research team. She was later recruited by a privately-funded research company, and would later end up on the island as one of "The Others".

• Starring Season: 1
• Guest Episodes: Abandoned, Further Instructions & Exposé

Boone was aboard Oceanic Flight 815 after he had traveled to Sydney, Australia to rescue his sister from her abusive boyfriend after he received a frantic phone call from her. Boone was the Chief Executive Officer of a clothing subsidiary of his mother’s wedding company.

• Starring Season: 2
• Guest Episode: Exodus - Part 1 & The Lie

Ana-Lucia was a Police Officer and was a member of the Los Angeles Police Department. After traveling with Christian Shephard to Australia as his personal bodyguard, she decided she had enough, and was returning home to Los Angeles.

• Starring Seasons: 1, 2, & 4

Michael was aboard Oceanic Flight 815 after he had traveled to Sydney, Australia to pick up his son, who was not legally under his care. Michael was previously an artist, but a car accident sidetracked his talent, and Michael worked in construction for 8 years.

• Starring Seasons: 4 & 5

Daniel Faraday is a member of the freighter search team, who parachuted onto the island after jumping from a helicopter at a low altitude. After landing, he was immediately met by Jack and Kate, and Faraday correctly assumed who Jack was.

• Starring Season: 3

Nikki was aboard Oceanic Flight 815 with Paulo, after murdering Howard L. Zuckerman for $8 million worth of diamonds.

• Starring Seasons: 1, 2, 3, 4 & 5

Sawyer was aboard Oceanic Flight 815 after killing the man who he’d thought ruined his life, and was deported from Australia after being drunk and assaulting an Australian politician. Sawyer was a Con Man who preferred to play the romance angle.

• Starring Seasons: 3, 4 & 5
• Guest Episodes: Man of Science, Man of Faith, Adrift, Orientation & Live Together, Die Alone

Desmond was the occupant inside the mysterious Swan Station and arrived on the island 3 years before the crash of Flight 815 as a result of a failed attempt at racing around the world in a sailboat.

• Starring Seasons: 1, 2, 3, 4 & 5

Sayid was aboard Oceanic Flight 815 because he was traveling to Irvine, California to meet his former love Nadia with whom he'd been estranged from for many years. Sayid was formerly a Military Communications officer for the Republican Guard and had served in the Gulf War.

• Starring Seasons: 1, 2, 3, 4 & 5

Jin was aboard Oceanic Flight 815 after his father-in-law requested that he delivered expensive watches to his associates in Sydney and Los Angeles. Jin agreed to be employed by his father-in-law after being given permission to marry Sun.

• Starring Seasons: 1, 2, 3, 4 & 5

Sun was aboard Oceanic Flight 815 after accompanying her husband to Sydney on business. While there, she attempted to escape from her husband but backed out at the last second after she realized how much she loved her husband.

• Starring Seasons: 4 & 5

Charlotte Lewis previously worked as a Cultural Anthropologist, and had discovered a polar bear related to the DHARMA Initiative in the Tunisian desert. Charlotte arrived on the island as part of the freighter search team, who arrived for Benjamin Linus.

• Starring Season: 2
• Guest Episode: Meet Kevin Johnson

It is unknown why Libby was aboard Oceanic Flight 815 or what her life previous exactly was, however, it has been viewable through the flashbacks of various characters.

• Starring Seasons: 3, 4 & 5
• Guest Episodes: One of Them, Maternity Leave, The Whole Truth, Lockdown, Dave, S.O.S., Two for the Road, & Live Together, Die Alone

Benjamin "Ben" Linus is a member of the Others who was captured by Rousseau and turned over to Sayid for interrogation inside the Hatch/Swan Station. Initially he claimed that his name was Henry Gale, and it was later discovered as a ruse.

• Starring Seasons: 1, 2, 3 & 4

Claire was aboard Oceanic Flight 815 after a long ordeal with a psychic convinced her to put her baby up for adoption to a couple in Los Angeles. Claire was once employed by a fast food restaurant, and was previously dating an artist named Thomas.

• Starring Season: 1
• Guest Episodes: Man of Science, Man of Faith, Abandoned, Three Minutes, Live Together, Die Alone, Through the Looking Glass, Meet Kevin Johnson, There's No Place Like Home - Part 2 & The Life and Death of Jeremy Bentham

Walt was aboard Oceanic Flight 815 after his mother had passed away and his adoptive father had relinquished his paternal rights to Walt’s biological father. The two were returning to the US. Walt had moved all his life, and was previously a student in Sydney, Australia.

• Starring Seasons: 1, 2, 3, 4 & 5

John Locke was aboard Oceanic Flight 815 returning to Los Angeles after he was attempting to attend a Walkabout Tour but was denied as he was currently in a wheelchair. Locke was a foster child, had been previously employed by a department store, as well as a box company.

• Starring Seasons: 1, 2 & 3
• Guest Episode: The Beginning of the End

Charlie was previously in the legendary British band "Drive SHAFT", which he had formed with his brother Liam. After arguments about royalties and the pursuit of drugs, the band parted ways. Charlie was aboard Flight 815 after trying to convince Liam to reform the band.

• Starring Season: 3

Paulo was one of the many survivors of Flight 815 that were in the Fuselage section of the plane. Paulo felt that he was always left out and seemed to harbor resentment toward the survivors' inner circle.

• Starring Seasons: 1, 2, 3, 4 & 5

Hurley was aboard Oceanic Flight 815 because he was trying to figure out the significance of “The Numbers”. Hurley was previously employed at a fast food restaurant, but a lottery win changed everything when it earned him millions.

• Starring Seasons: 1 & 2
• Guest Episodes: Collision & Exposé

Shannon was aboard Oceanic Flight 815 after being “rescued” by her brother Boone. Shannon was previously employed as a Ballet Instructor, and was once offered a prestigious Dance Internship in New York.

• Starring Seasons: 1, 2, 3, 4 & 5

Jack was aboard Oceanic Flight 815 because he was returning his father's body to the United States to be buried. Jack is a Spinal surgeon at St. Sebastian Hospital in Los Angeles, CA.

• Starring Seasons: 4 & 5

Miles Straume is a member of the freighter search team. He was recruited by Matthew Abaddon to join a team along with Daniel, Frank and Charlotte, led by Naomi, to arrive at the island in search of Benjamin Linus. Miles previously worked as a medium in Inglewood, California.

• Starring Seasons: 2 & 3
• Guest Episodes: Adrift & Orientation

Eko Tunde was aboard Oceanic Flight 815 after agreeing to travel to Los Angeles for missionary work. Eko was previously a warlord in Nigeria, who would later turn his life around to become a priest. He was also the brother of a passenger in the Beechcraft that crashed on the island.