Currently available on 2 streaming services.

Streaming, rent, or buy H2O: Mermaid Adventures – Season 1:

Currently you are able to watch "H2O: Mermaid Adventures - Season 1" streaming on Netflix, Amazon Prime Video.

Cast

Katharina von Keller
Emma (voice)
Patrick Bach
Lewis (voice)
Sonja Stein
Cleo (voice)
Robert Missler
Bernie (voice)
Céline Fontanges
Rikki (voice)