H2O: Just Add Water And Then There Were Four (Season 2, Episode 21)
TV-Y7
TV Episode | 25 min | Adventure, Comedy, Drama

Primary photo for And Then There Were Four

H2O: Just Add Water

And Then There Were Four (Season 2, Episode 21)

TV-Y7

TV Episode | 25 min | Adventure, Comedy, Drama

Charlotte's stubborn nature and thirst for knowledge leads her to Max, who confirms her suspicions and leads her to the Moon Pool. Lewis meanwhile is having trouble trying to keep their relationship together.

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Cast	+ Add Cast
11 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 Emma Gilbert 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)
Cleo Massey Kim Sertori Kim Sertori See fewer	H2O: Just Add Water (2006)
Craig Marriott Frank Frank See fewer	Nim's Island (2008)
Ashleigh Brewer Gracie (archive footage) Gracie (archive footage) See fewer	Neighbours (1985)
Alan David Lee Don Sertori Don Sertori See fewer	The Beast (1996)
Martin Vaughan Max Hamilton Max Hamilton See fewer	Picnic at Hanging Rock (1975)
Matthew Scully Young Max (archive footage) Young Max (archive footage) See fewer	Terra Nova (2011)