The Good Sister
The Good SisterSally Hepworth
Characters in The Good Sister
6 characters, main characters first.Main characters
Fern Castle
A gentle, rule-bound librarian with sensory sensitivities who narrates in first person and decides to have a baby for her twin.
Supporting characters
Wally (Rocco)
An awkward, kind man Fern befriends at the library who draws her beyond her routines.
Nina Castle
The twins' mother, now in a care facility after suffering brain damage; appears in the sisters' recollections of childhood.