The primary antagonist, Bingham is an English official driven by a personal vendetta against Grace. He represents the oppressive forces of imperialism and is relentless in his efforts to subjugate her and her family.

Grace's primary romantic interest, Richard is known for his unwavering loyalty and emotional fortitude. He shares a deep bond with Grace, characterized by mutual respect and partnership.

Grace’s father and mentor, Eóin is a powerful chieftain who recognizes Grace’s connection to the sea. He navigates the tension between tradition and his daughter’s unyielding nature.

Grace’s half-brother and a gentle leader who prefers music to conflict. He inherits the chieftaincy out of duty and supports Grace’s maritime endeavors, ensuring the family’s security.

Grace’s pragmatic mother and mentor, Maeve imparts vital lessons in female empowerment. She prepares Grace for a life of struggle and self-assertion in a patriarchal world.

The youngest son of Grace and Richard, Tibbot exhibits traits from both parents. Born during conflict, he represents the next generation’s potential for resistance.

Richard’s mother and a cunning schemer, Finola is focused on maintaining power within a patriarchal hierarchy. She trains Grace to assume traditional roles and uses manipulation to advance her family’s interests.

Grace’s first husband, Donal is irascible and embodies oppressive patriarchy. His untimely death frees Grace to pursue her own power and legacy.

A shrewd and calculating ruler, Elizabeth serves as a foil to Grace. She shares a moment of mutual recognition with Grace, highlighting their parallel navigation of male-dominated societies.