Here's a list of the cast members during the H2O series.
H2O: Just Add Water[]
Main Cast[]
Cariba Heine, Phoebe Tonkin, Indiana Evans and Angus McLaren.
- Phoebe Tonkin as Cleo Sertori
- Cariba Heine as Rikki Chadwick
- Indiana Evans as Isabella Hartley (season 3)
- Angus McLaren as Lewis McCartney
- Luke Mitchell as Will Benjamin (season 3)
- Burgess Abernethy as Zane Bennett
- Brittany Byrnes as Charlotte Watsford (season 2)
Cariba Heine, Phoebe Tonkin, Brittany Byrnes, Claire Holt and Angus McLaren.
Supporting Cast[]
- Cleo Massey as Kim Sertori
- Trent Sullivan as Elliot Gilbert (seasons 1-2)
- Ariu Lang Sio as Wilfred (seasons 1-2)
- Craig Horner as Ash (season 2)
- Annabelle Stephenson as Miriam Kent (season 1)
- Christopher Poree as Byron (season 1)
- Alice Hunter as Tiffany (season 1)
- Christine Amor and Teri Haddy as Louise Chatham (seasons 1-2)
- Amrita Tarr and Taryn Marler as Julia (seasons 1-2)
- Taryn Marler as Sophie Benjamin (season 3)
- Ashleigh Brewer as Gracie (seasons 1-2)
- Jamie Timony as Nate
- Ben Timony as Jason (season 3)
- Alan David Lee as Donald Sertori
- Penni Gray as Samantha Sertori (season 3)
- Andrew Lees as Ryan Tate (season 3)
- Jared Robinsen as Neil Gilbert (seasons 1-2)
- Caroline Kennison as Lisa Gilbert (seasons 1-2)
- Deborah Coulls as Bev Sertori (season 1)
- Lara Cox as Linda Denman (season 1)
- Rebekah Madden-Fisher as Amber (season 2)
- Mouche Phillips as Ms. Taylor (season 3)
- Andy McPhee as Terry Chadwick (season 2)
- Martin Vaughan and Matthew Scully as Max Hamilton (season 2)
- Tiffany Lamb as Annette Watsford (season 2)
- Joss McWilliam as Harrison Bennett (season 1)
- Brigette Paroissien as Candy (season 1)
- Matthew O'Kine as Laurie (seasons 2-3)
- Andrea Moor as Mrs. Geddes (seasons 1-2)
- Paul Bishop as Mitch (season 1)
- Chas Green as Greg (season 1)
Mako: Island of Secrets[]
Main Cast[]
Amy Ruffle, Ivy Latimer, Lucy Fry and Chai Hansen.
- Ivy Latimer as Nixie (season 1)
- Amy Ruffle as Sirena (seasons 1-2)
- Chai Hansen as Zac Blakely
- Gemma Forsyth as Evie McLaren
- Allie Bertram as Mimmi (season 2-3)
- Isabel Durant as Ondina (season 2-3)
- Alex Cubis as Erik (season 2)
- Linda Ngo as Weilan (season 3)
- Dominic Deutscher as Cam Mitchell
- Brooke Lee as Carly Morgan
- Rowan Hills as David
Isabel Durant, Allie Bertram, Chai Hansen, Amy Ruffle, Gemma Forsyth and Alex Cubis
Supporting Cast[]
Isabel Durant, Allie Bertram, Chai Hansen, Gemma Forsyth, Linda Ngo, Dominic Deutscher, Brooke Nichole Lee and Rowan Hills
- Kerith Atkinson as Rita Santos
- Taylor Glockner as Chris (seasons 2-3)
- Mikey Wulff as Karl (season 3)
- Laura Keneally as Lauren Blakely
- John O'Brien as Rob Blakely
- Jenna Rosenow as Aquata (season 1)
- Victor Parascos as Mick
- Nick Wright as Joe
- Monte as Poseidon
- Natalie O'Donnell as Veridia (season 2-3)
- Paul Bishop as Dr. Ross (seasons 2-3)
- Barbara Lowing as Ms. Trumble (seasons 2-3)
- Steve Harman as Doug McLaren (seasons 2-3)
- Summer Robertson as Ava (season 3)
- Milly Walton as Jewel (season 3)
- Emily Robinson as Amaris (season 3)
- Savannah Foran-McDaniel as Naia (season 3)
- Jon-Claire Lee as Uncle Shen (season 3)