H2O: Just Add Water Test

The H2O: Just Add Water Test is inspired by psychometric methodology and based on research into the characters of the film. The test provides feedback such as the following:

Emma Gilbert

Emma Gilbert is the organized, high-achieving leader of the mermaid trio who thrives on structure and schedules. Driven by a deep sense of duty and integrity, she constantly strives to do the right thing and keep everyone safe. However, her need for control often masks a fragile vulnerability. She easily gets frustrated when her plans fall apart, and she tends to hide her personal hurt behind a rigid, bossy exterior. While she struggles to loosen her grip on life, her loyalty to her friends is absolute. She is a reliable protector who must learn that accepting imperfection is the only way to truly connect with others.

Cleo Sertori

Cleo Sertori is the emotional heart of her friend group, a sensitive and empathetic mermaid who initially fears the very element she controls. While she is prone to panic and self-doubt when unexpected problems arise, her deep loyalty to her friends and her love for marine animals drive her to overcome her anxieties. She prefers to avoid conflict and appease authority figures, yet she will step up decisively to protect those she cares about. Over time, she channels her curiosity into scientific study, transforming her vulnerability into quiet resilience. She balances her family's chaotic dynamics with her secret supernatural life, proving that sensitivity can become a profound source of strength.

Rikki Chadwick

Rikki Chadwick is a rebellious and fiercely independent mermaid who hides her soft side behind a sharp, sarcastic exterior. She instinctively pushes back against rules and authority, preferring to face her problems with bold, risky actions. Because she expects rejection, she keeps others at a distance to protect herself from being hurt. Yet beneath her spiky defenses lies an incredibly loyal friend who will do anything to protect her inner circle. She constantly struggles to balance her intense need for personal freedom with her desire for genuine emotional security, especially in her volatile relationship with Zane. Though she guards her secrets closely, she loves deeply once she finally trusts someone.

Bella

Bella is a warm and expressive mermaid who often feels like the perpetual new girl. Having spent her childhood moving from place to place, her deepest motive is to find a stable group where she truly belongs. However, this intense desire for connection sometimes makes her attach too quickly or become defensive when she fears her place in the group is threatened. She uses her musical talents to share her feelings, yet she struggles to trust others with her deepest secrets. She is fiercely loyal to her friends and romantic partners, but her fear of abandonment can drive her to make impulsive, anxious choices when she feels excluded.

Charlotte Watsford

Charlotte Watsford is a talented and lonely newcomer who transforms into a powerful rival after discovering her grandmother's magical legacy. Driven by a deep hunger for belonging, she deliberately seeks out the Moon Pool to claim her destiny. She acquires all three elemental powers, yet her insecurity twists this extraordinary gift into a tool for control. She works to isolate her partner from his friends and fiercely defends her status as the only true mermaid. Her possessive habits ultimately alienate the very people she wishes to connect with, turning her quest for love into a tragic, self-imposed isolation.

Lewis McCartney

Lewis McCartney is a dorky and devoted teen scientist who acts as the loyal, rational anchor for his extraordinary friends. Driven by a deep desire to protect those he loves, he uses his analytical mind to solve practical problems and shield the mermaids from exposure. However, his reliance on data and logic often clashes with the unpredictable nature of magic and teenage emotions. He frequently tries to mediate disputes and remains optimistic during crises, though his social awkwardness can make romantic situations difficult. While his protective instincts sometimes cross into overbearing control, his steadfast loyalty makes him a reliable partner who values connection over easy answers.

Zane

Zane Bennett is a wealthy, thrill-seeking rebel who hides a bruised heart behind an arrogant exterior. He initially acts as a local antagonist, but his tough behavior masks deep insecurities stemming from his demanding father. He is driven by a strong desire for respect and genuine connection, especially in his intense, volatile relationship with Rikki. When he feels excluded or insecure, he often makes reckless decisions and lashes out. However, he is capable of profound loyalty and will make major sacrifices for the people he trusts. He constantly struggles to balance his competitive pride with his need for authentic intimacy.