Special Guest Stars Cariba Heine as Rikki Chadwick Guest Stars Dominic Deutscher as Cam Rowan Hills as David Kerith Atkinson as Rita Santos Brooke Nichole Lee as Carly Taylor Glockner as Chris Natalie O'Donnell as Veridia Jon-Claire Lee as Uncle Shen Jessica Stafford as Mermaid Council Member #1 Jacqueline Tan as Mermaid Council Member #2 Alex Pinder as Mr. Singh Tasneem Roc as Nerissa Lincoln Raurimu as Art Centre Worker #1 Luke Frohling as Art Centre Worker #2