Kelly Sheridan as Merliah (voice)

Kathleen Barr as Eris / Snouts (voice)

Tabitha St. Germain as Zuma / Deanne (voice)

Peter Mel as Surf Announcer (voice)

Nakia Burrise as Fallon (voice)

Maryke Hendrikse as Hadley (voice)

Emma Pierson as Kayla (voice)

Ciara Janson as Xylie (voice)

Garry Chalk as Break (voice)

Nicole Oliver as Calissa (voice)

Alistair Abell as Remo / Pufferazzi (voice)

Andrea Libman as Dee (voice)

Shannon Chan-Kent as Deandra (voice)

Ellen Kennedy as Lipstick Fish / Syrenka (voice)

Scott McNeil as Syrenka's Pet Fish (voice)

Melissa Lyons as Merliah (singing voice)

Alex Ferris as Dreamfish (voice)