Antonia Mary Prebble (born June 6, 1984) is a New Zealand actress best known for her roles in television series such as Outrageous Fortune, Westside, and The Tribe. She has built a successful career in film, television, and theater, becoming one of New Zealand’s most recognizable and respected actresses.

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In 2006, Antonia Prebble joined the Power Rangers franchise as Clare, a comedic yet determined apprentice sorceress in Power Rangers Mystic Force. Clare was the granddaughter of the powerful sorceress Udonna and aspired to master magic like her grandmother. Throughout the series, she evolved from an unsure and clumsy trainee into a capable and courageous magic user who played a crucial role in the Rangers’ battle against the forces of darkness.

Her performance added heart and humor to the show, making Clare a fan-favorite character. Although she wasn't a Power Ranger herself, Clare’s development and eventual mastery of her powers made her an essential ally to the Mystic Force Rangers.