H2O: Just Add Water The Gracie Code: Part 1 (Season 2, Episode 19)
TV-Y7
TV Episode | 25 min | Adventure, Comedy, Drama

Primary photo for The Gracie Code: Part 1

H2O: Just Add Water

The Gracie Code: Part 1 (Season 2, Episode 19)

TV-Y7

TV Episode | 25 min | Adventure, Comedy, Drama

Lewis is trying to find more information on the moon pool and stumbles across research on it by Max Hamilton from fifty years ago. Will Lewis reveal the girls' secret to him in order to complete the puzzle?

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Cast	+ Add Cast
12 cast members

Name	Known for
Brittany Byrnes Charlotte Watsford Charlotte Watsford See fewer	Babe (1995)
Cariba Heine Rikki Chadwick Rikki Chadwick See fewer	Designated Survivor (2016)
Claire Holt Emma Gilbert (archive footage) Emma Gilbert (archive footage) See fewer	47 Meters Down (2017)
Phoebe Tonkin Cleo Sertori Cleo Sertori See fewer	Boy Swallows Universe (2024)
Angus McLaren Lewis McCartney Lewis McCartney See fewer	H2O: Just Add Water (2006)
Craig Horner Ash (credit only) Ash (credit only) See fewer	See No Evil (2006)
Trent Sullivan Elliot (credit only) Elliot (credit only) See fewer	The Condemned (2007)
Ashleigh Brewer Gracie Gracie See fewer	Neighbours (1985)
Matthew Scully Young Max Young Max See fewer	Terra Nova (2011)
Teri Haddy Louise Louise See fewer	H2O: Just Add Water (2006)
Taryn Marler Julia Julia See fewer	The Hamster Snatcher (2017)
Martin Vaughan Max Hamilton Max Hamilton See fewer	Picnic at Hanging Rock (1975)