She emphasizes honoring her Samoan heritage and representing authentic Polynesian culture central to Moana’s narrative.

Catherine Lagāia, a Sydney-born Samoan-Australian performer, won the lead role of Moana in Disney's live-action adaptation after beating out more than 32,000 applicants and is set to star opposite Dwayne Johnson as Maui.

The casting introduces a fresh, newcomer talent, with director Thomas Kail describing Lagāia as naturally fitting for Moana and able to carry the film with an authentic presence.

Lagāia trained in Polynesian dance and navigation, endured demanding shoots in a freezing Atlanta water tank with blue-screen work, and relied on on-set improvisation and imagination.

Lagāia’s rise followed moments of self-doubt, supported by her family’s encouragement and a pivotal New York interview with director Thomas Kail.

She credits her Moana ohana—the cast and crew—for guidance, highlighting camaraderie with Rena Owen, John Tui, and Frankie Adams.

She faced early performance anxiety and focused on vocal technique and breath control to master Moana’s demanding songs, including a standout performance of How Far I’ll Go.

Lagāia approached the role by balancing honoring the beloved animated version while delivering a distinct, authentic interpretation that preserves the journey to restore Te Fiti’s heart.

Director Thomas Kail noted Lagāia’s intrinsic quality and selected her from thousands of submissions, describing the moment as a true fit for Moana.

Kail also highlighted Lagāia’s strong on-set presence, earning the respect of the crew and co-stars, including her scenes opposite Johnson.

Dwayne Johnson praised Lagāia’s talent and suggested Moana’s life will change for her as a result of her breakthrough performance.

The live-action adaptation preserves the original plot and songs by Lin-Manuel Miranda, with a new song Along the Way performed by Lagāia, Cravalho, and Johnson.