Pearl is the main protagonist and main character of the episode titled The Call. She is a siren.
- Mind control
- Danny: her adoptive older brother, he's the one who tells her there's something strange in her.
- Pui: she has come to the surface to take Pearl back to their home, but she refuses after Pui tries to kill her brother.
- Parents: they took care and loved her since they have found her abandoned on the beach. At the end of the episode Pearl annulled the birthday party because she preferred doing it with her family.