As a form of cosmic irony, characters' roles reverse as the series progresses. Sometimes, characters fulfill a role that is opposite from an earlier one. Other times, they reverse roles with a specific other character.
Reversal of characters' own roles
Ben Linus

The chessmaster

The pawn

Mass murderer

Kind teacher

Roger's killer

Roger's caregiver
Bernard Nadler

Dentist

Sugar lover
Boone Carlyle

Lifeguard

Drowning victim
Daniel Faraday

Time travel skeptic

Time traveler
Desmond Hume

Coward

Fearless
Eko

Warlord

Priest
Ethan Rom

Crash survivor shooter

Crash survivor shooting victim
Hugo Reyes

Working stiff

Millionaire CEO
Jack Shephard

Doctor

Patient
- Kate stitched his shoulder. ("Pilot, Part 1")
- Kate made him a sling. ("The Moth")
- Juliet removed his appendix. ("Something Nice Back Home")

Respected surgeon

Lowly workman

Island escapee

Island searcher

Awed son

Imposing father

Man of science

Man of faith
Kate Austen
Fugitive

Tracker
- Charlie and Claire, after their kidnapping. ("All the Best Cowboys Have Daddy Issues")
- Naomi, after her post-stab wound flight. ("The Beginning of the End")
- Sawyer, when he left the Temple. ("What Kate Does")

Cop hater

Cop lover
Libby Smith

Mental patient

Psychologist
John Locke
Paralytic

Health-Ed teacher

Button pusher

Button rebel

Drug grower

Drug fighter
James "Sawyer" Ford

Con man

Con victim
- Hibbs conned him into killing Frank Duckett. ("Outlaws")
- Ben conned him into stressing over his heart rate. He said conning is the only way to win a con-man's respect. ("Every Man for Himself")
- Hurley conned him into being nice to the camp. Sawyer called this "the lamest con in the history of cons." ("Left Behind")
- The Man in Black conned him into activating his bomb. ("The Candidate")

Outlaw

Law man
Sayid Jarrah

Torturer

Torture victim
- Sami imprisoned him and interrogated him about his own activities as a torturer. ("Enter 77")
- Danielle tortured and interrogated him during his self-imposed exile for torturing Sawyer. ("Solitary")
- Oldham interrogated him, but using LSD, not physical coercion. ("He's Our You")
- Dogen's electrocuted Sayid and burned him with a poker. This baffled Sayid. "They didn't even ask me any questions," he said. ("Sundown")

Terrorist negotiator

Suicide bomber
Reversals with another character
Hurley and Libby
![]() Jin and SunJin orders Sun |
![]() Sun orders Jin |
Jin ordered Sun around during their marriage, hurting their relationship. After their on-island reconciliation, Sun ordered him around. Sun commented on the reversal. |
Libby suffered from mental illness after her husband's death. On the Island, she discovered Hurley, a fellow inmate from the hospital, and she convinced him he was sane. After death, Libby imagined herself in the hospital again. This time, Hurley, now free from madness, convinced her of her sanity. | ||
![]() Ben and JackJack imprisons Ben |
![]() Ben imprisons Jack |
Jack imprisoned Ben in the Swan for the latter part of season 2. For the first half of the following season, Ben imprisoned Jack on Hydra Island. Ben commented on the reversal. |
![]() Ben and LockeLocke imprisons Ben |
![]() Ben imprisons Locke |
Locke imprisoned Ben in the Swan for the latter part of season 2. For a brief time of the following season, Ben had Locke locked up when he had destroyed the submarine. Locke imprisoned Ben again the following season. |
![]() Ben and SayidSayid interrogates Ben |
![]() Ben interrogates Sayid |
Sayid questioned and tortured Ben when in the Swan station. Years later, Sayid traveled to 1977 and found himself imprisoned. A 12-year-old Ben came to question him. |
![]() Horace and SawyerHorace wakes Sawyer |
![]() Sawyer wakes Horace |
After the sonic fence knocked him out, Sawyer awoke on a couch to Horace asking, "How's your head?" Sawyer replied, "It hurts." Years later, Horace awoke on a couch to Sawyer asking the same question and gave the same reply. |
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![]() Others and SurvivorsClueless survivors |
![]() Clueless Others |
After 815 crashed, the Others knew all about the survivors and the survivors knew nothing about the Others. After 316 crashed, the survivors knew a lot about the Others, but the Others knew nothing about the survivors. |