Richard 'Dicky' Lestrange
A shipwrecked boy who grows into Emmeline's partner and the father of her child.
Emmeline Lestrange
Richard's cousin, stranded with him from childhood and left to understand adulthood without guidance.
Paddy Button
The sailor who saves and initially raises the children, then dies after years on the island.
Hannah
Richard and Emmeline's baby, named without the parents understanding the name's usual gender.
Arthur Lestrange
The grieving relative who survives the wreck and devotes years to finding the children.
Captain Stannistreet
The schooner captain who carries Lestrange on the final search.
Captain Fountain
The invalid former whaler whose preserved clue identifies the island's location.