Miss Marla is a teacher at the Sea School. She is a nice and kind woman, but she can be very demanding when it comes to her students. She will not hesitate to send notes to any of their parents, including the Shark King.
It is believed that Miss Marla was chosen by the goddess Salacia to teach the princes and princesses of the sea about the secrets of her world and to prepare them for an important mission in their future...
- Miss Marla is the only "civilian" character (that is, not part of any royal family) to make regular appearances in the series.