Lott Klein was a young boy who with his sister
Lily Klein was born and raised on Sheena Island as part of a drive by Umbrella to create a sustainable community there alongside their secret research facilities.
As he was born and raised under Umbrella values he and her sister were led to believe that the company's research was for a good purpose and that their mission was to improve the world instead of the truth. When the
t-Virus outbreak occurred on the island his parents unfortunately died and he was left with his sister to hide in Umbrella facilities where they would be safe.
He and his sister were later found by
Ark Thompson, a private investigator who was sent to the island to investigate Umbrella. At first he and Lily thought that Ark was there to hurt them and they ran away - back to their old house where they knew there was a shortcut to reach a subway system.
While Lily remained at home to be safe. Lott scouted ahead to attempt to find the subway system. Once he did he eventually returned to the house and he found that Ark had found Lily once again; it turned out that they had a discussion which convinced Lily that Ark was not an enemy of theirs - eventually all three joined together and Ark led a courageous escape of the island from a helicopter.
After the island incident it has not been confirmed what happened to the two, it is assumed they re-entered education and learned of Umbrellas true nature.