Guest Stars Dominic Deutscher as Cam Rowan Hills as David Kerith Atkinson as Rita Santos Brooke Nichole Lee as Carly Reiko Austen as Senior Mermaid #1 Natalie Prigoone as Senior Mermaid #2 Anita Munro as Younger Mermaid #1 Yasmin Honeychurch as Younger Mermaid #2