Directed by Marita Grabiak and written by Lynne E. Litt, the episode was the first to reveal the backstory of Claire Littleton (Emilie de Ravin).

It also represented a shift from previous Lost backstories by being one of the first to emphasise the series' mythology – a decision that made the network nervous at the time.

Claire visits a psychic (Nick Jameson) who warns her of a dangerous future for her unborn child if she does not raise it.

"Raised by Another" marks the revelation that Ethan (William Mapother) is not among the remaining survivors of Oceanic Flight 815 and is instead an outsider, revealed to be one of the Others alluded to in the previous episode.

The final scene involving Claire and Charlie (Dominic Monaghan) being approached by Ethan was lauded by television commentators.

In the first, Claire wakes to find herself no longer pregnant, as she walks into the forest and encounters John Locke (Terry O'Quinn) at a table, playing cards.

Claire's attack persuades Hugo "Hurley" Reyes (Jorge Garcia) to take a census of the survivors to have a clear idea of who actually resides on the island.

Boone Carlyle (Ian Somerhalder) tells Hurley that James "Sawyer" Ford (Josh Holloway) has the flight manifest from the plane, and that could help him take the census.

Charlie says he can deliver the baby, but after he accidentally confesses that he is a recovering drug addict, she yells at him to get Jack, which leaves her alone in the jungle.

A badly wounded Sayid Jarrah (Naveen Andrews) returns to camp and tells the others about Danielle Rousseau (Mira Furlan), and that other people live on the island, besides the plane survivors.

Series co-creator Damon Lindelof later recalled that when the network realized Lost was going to be popular, they read the plans for "Raised by Another" and warned the writers not to endanger its success.

"[5] The episode's director, Marita Grabiak, had worked with Lost co-creator J. J. Abrams on the television series Alias.

"[6] Emilie de Ravin, an Australian actress, originally auditioned for the role of Shannon, speaking her dialogue with an American accent.

[10] The build up to Ethan's reveal is exceptionally handled, with Jack doubting the authenticity of Claire's claims and Hurley creating a list of all the survivors so that they can keep track of who is who.

[13] Writing for Entertainment Weekly, Whitney Pastorek called it "a decent episode made much, much better by its absolutely bloodcurdling final moments.

McGee felt that Ethan's reveal helped Lost turn "sharply in introducing an on-Island, human threat for [the] survivors."