<P> The episode , unlike most Lost episodes , does not divide its time between two different time settings , but takes place entirely in the past , except for a brief scene at the end from the season one episode `` House of the Rising Sun . '' It depicts the origins of the characters of Jacob ( Mark Pellegrino ) and his brother , The Man in Black ( Titus Welliver ) , and how they came to be on the island . It also reveals the identities of the corpses discovered in the cave in `` House of the Rising Sun . '' None of the series regulars appear in the episode , except in the flashback sequence , making it the only episode of the series in which this occurs . </P>
<P> The episode , unlike most Lost episodes , does not divide its time between two different time settings , but takes place entirely in the past , except for a brief scene at the end from the season one episode `` House of the Rising Sun . '' It depicts the origins of the characters of Jacob ( Mark Pellegrino ) and his brother , The Man in Black ( Titus Welliver ) , and how they came to be on the island . It also reveals the identities of the corpses discovered in the cave in `` House of the Rising Sun . '' None of the series regulars appear in the episode , except in the flashback sequence , making it the only episode of the series in which this occurs . </P>
who plays jacob as a kid in lost
who plays jacob as a kid in lost
Mark Pellegrino
Mark Pellegrino