Owner and captain of the We’re Here, the fishing schooner aboard which Harvey must work; he responds to the boy with stern discipline.

Disko’s son and a boy near Harvey’s age who befriends the castaway and believes his account of his wealthy family.

A Portuguese fisherman and member of the We’re Here’s crew who rescues Harvey from the sea in his dory.

Harvey’s father, a wealthy shipowner and self-made businessman who rose from poverty through maritime trade.

Harvey’s indulgent mother, who is accompanying her fifteen-year-old son on his voyage to Europe when he falls overboard.

An Irish crew member who takes part in Harvey’s nautical education by teaching him the ropes and the schooner’s equipment.

The We’re Here’s Nova Scotia-raised cook, one of only two people aboard who initially believe Harvey’s account of his background.