Nerissa is a Northern mermaid from the TV-show Mako: Island of Secrets. She is portrayed by Tasneem Roc.
Nerissa is known as the most powerful mermaid to ever live. All the mermaids in the world admired and strived to be like her. She has mastered spells that no other mermaid in the world has been able to accomplish. She was also stated to have been extremely kindhearted and brave. At some point, Nerissa had two children, a daughter named Mimmi and a son named Zac.