Hari Nef
— Clamindia
Khadija Otero
— JJ
Mike Bailey-Gates
— Flemo
Louis Shannon
— Sammy / Voice of Tooty / Voice of Wave / Voice of Vampira
Matt Holmes
— Matt
Chloe Wise
— Dipley
Mars Hobrecker
— Wink
Mickey Mahar
— Link
Elise Swain
— Tooty
Ebba Pero
— Syndy
Dvante Hart
— Mermaid 1
Karmenife Gomez-Paulino
— Mermaid 2 / Voice of Drowned Swimmer
Bobbi Salvör Menuez
— The Sun
Logan Jackson
— Voice of Dipley / Voice of Wave
Ken Lavey
— Wave
Jack Shannon
— Wave
Stephanie Katz
— Wave
Maggie Dunlap
— Wave
Ser Serpas
— Wave
Sandy Honig
— Drowned Swimmer
Andie Glik
— Vampira
Cameron Gray
— Voice of Sammy
Melissa Gaudet
— Voice of Mermaid
Claire Christerson
— Narrator / Wave / Mermaid / Syndy (voice)