Miranda Caliban is the wife of Thursday and mother of Friday. She is a resident on the Island. She lied to her daughter and told her that her father died in a manatee accident; the truth being that Thursday left the island but Miranda thought it was better to stay.
- It is unknown whether Caliban is Miranda's married name or her maiden name, but either way she is in someway related to Olivia Caliban, whether blood related or through her husband.
- The name "Miranda" is likely in reference to one of the principal characters of Shakespeare's "The Tempest", a play concerning a group of people who are shipwrecked on an island.
- There is a theory that Mrs. Widdershins and Miranda Caliban are the same, meaning Fiona and Fernald are also her children.