Children and pregnancies are both regular topics on Lost.
Occurrences[]
Season 1[]
- Megan Pace was playing in the backyard when Charlie visited Liam. ("The Moth")
- Sawyer aborted a con after he saw a boy that reminded him of his past. ("Confidence Man")
- Aaron Littleton was kidnapped in utero, along with his mother. ("Raised by Another")
- An unborn baby was lost after Christian Shephard accidentally killed Beth while operating on her drunk. ("All the Best Cowboys Have Daddy Issues")
- Shannon spent a year in Paris watching a child named Laurent. That's when she learned the song that helped Sayid understand the maps he took from Rousseau. ("Whatever the Case May Be")
- Aaron Littleton's mother, Claire, escaped Ethan Rom. ("Special")
- Jin threatens to beat up Byung Han in front of his daughter. ("...In Translation")
- A kid talked to Locke about Mousetrap in a toy store ("Deus Ex Machina").
- Aaron Littleton was born. ("Do No Harm")
- Alex Rousseau was kidnapped as a baby, and raised by the Others. ("Exodus, Part 1")
Season 2[]
- The poor man's son needed to go to the bathroom. ("...And Found")
- Sophie was cared for by Shannon for a year. ("Abandoned")
- Zach and Emma were both taken by the Others. ("The Other 48 Days")
- Ana Lucia's unborn baby was lost after she was shot. ("Collision")
- Charlie has a flashback in which he and his band play in a big child's crib for a commercial. ("Fire + Water")
- Sun was confirmed as pregnant. ("The Whole Truth")
- Christian Shephard demanded to see his daughter. ("Two for the Road")
- Charlotte Malkin's "death" and "miraculous revival" summoned Mr. Eko to investigate on behalf of the Catholic Church. ("?")
Season 3[]
- Karl was shown as a teenaged boy imprisoned by the Others. ("A Tale of Two Cities")
- Bobby was a boy living in the commune. ("Further Instructions")
- A picture of Clementine Phillips was shown to Sawyer while Sawyer was in prison. ("Every Man for Himself")
- Daniel asked Mr. Eko "Are you a bad man? My mother says you are a bad man." ("The Cost of Living")
- Juliet is revealed to be a fertility doctor. She has impregnated a male field mouse and successfully uses a new drug to make her sister fertile. Dr. Alpert asks her to examine the CT scan of an unusual womb. ("Not in Portland")
- While staying in Phuket a young Thai boy sold Jack sodas on the beach. ("Stranger in a Strange Land")
- The children kidnapped by the Others, Emma and Zach, are seen at the Hydra station under the care of Cindy. ("Stranger in a Strange Land")
- Zach and Emma are later seen again with the Others at the ruins. ("The Brig")
Season 6[]
- Emma and Zach are seen again inside the Temple. ("LA X, Part 2")
- There are also two other children seen living at the Temple, one of them a young boy and the other a girl around Zach's age. ("LA X, Part 2")
- Jacob and the Man in Black are seen both as new-borns and teenagers. They are also revealed to be twins. ("Across the Sea")
Characters as kids[]
Many characters have had flashbacks that feature themselves as children, and some like Charlotte have been seen as children on the Island's flashes:
Season 1[]
- A young Jack Shephard talks to his father about being beaten up at school. ("White Rabbit")
- Young Sawyer is seen talking to his mother. ("Outlaws")
- Young Kate's voice is heard on a tape. ("Born to Run")
Season 2[]
- Younger versions of Eko and his brother Yemi are first seen. ("The 23rd Psalm").
- Younger versions of Charlie and his brother Liam are seen at Christmas time. ("Fire + Water")
Season 3[]
- Young Sun-Hwa Paik is seen in the opening scene of the episode. ("The Glass Ballerina").
- A young Eko is seen again with a younger Yemi. ("The Cost of Living")
- A young Hurley Reyes is seen talking to his father. ("Tricia Tanaka Is Dead")
- Young Ben arrives on the Island with his father. ("The Man Behind the Curtain")
- Young Charlie is taught how to swim at Butlins by his father. ("Greatest Hits")
Season 4[]
- An infant Locke is born, and at age 5, is visited by Richard Alpert. ("Cabin Fever")
Season 5[]
- A young Charlotte is seen and recognized by Daniel Faraday. ("LaFleur")
- A young Sayid is seen in Sayid's flashbacks. ("He's Our You")
- A young Miles is seen in Miles' flashbacks. ("Some Like It Hoth")
- A young Daniel is seen in Daniel's flashbacks. ("The Variable")
- A young Charlotte is instructed by Faraday to leave the Island, ("The Variable") and leaves the Island on the Galaga. ("Follow the Leader")
- A young Juliet, Sawyer and Kate are seen in flashbacks. ("The Incident, Part 1")
Characters as teens[]
Some characters have had flashbacks that feature themselves as teenagers:
Season 1[]
- Although she is not seen as a teenager, Kate has a flashback which contains her and her childhood sweat heart, Tom Brennan listening to a tape recorder which contained an entry of Kate and Tom as teenagers (around 12-13 years old). ("Born to Run")
Season 2[]
- An eighteen year old Shannon is seen in flashbacks. ("Abandoned")
Season 4[]
- One of Locke's flashbacks takes place while he is attending high school and living with his foster parents. ("Cabin Fever")
Season 5[]
- Both Eloise Hawking and Charles Widmore are seen at the age of 17 in 1954. ("The Lie") ("Jughead")
- Ben encounters multiple main characters as 12-year-old living with the DHARMA initiative in 1977. ("Namaste") ("He's Our You") ("Whatever Happened, Happened") Later, Ben has a flashback to his time with the Hostiles as a 12-year-old as he healed from a gunshot wound. ("Dead Is Dead")
- A teenage Miles visits his dying mother. ("Some Like It Hoth")
Season 6[]
- Both Jacob and The Man in Black are depicted as 13-year-olds in their flashbacks. ("Across the Sea")
- Teenage Jacob previously appeared as a vision to the Man in Black, Sawyer and Desmond. ("The Substitute") ("Everybody Loves Hugo")
Characters as infants[]
Season 3[]
- Ben flashbacks to his own birth. ("The Man Behind the Curtain")
Season 4[]
- Locke's birth and first day is seen in a flashback. ("Cabin Fever")
Season 5[]
- Pierre Chang feeds baby Miles before going to work. ("Because You Left")
- Baby Ethan is born to Amy and Horace, with a help from Juliet who is shocked by this fact. ("Namaste")
- Ben remembers the day he stole a one week old Alex. ("Dead Is Dead")
Season 6[]
- A flashback shows the birth of both Jacob and the Man in Black. ("Across the Sea")