[3] Mendoza has also performed in various stage productions across the West End and Broadway, including Miss Saigon (role of "Gigi"), Here Lies Love ("Imelda Marcos"), and Spider-Man: Turn Off The Dark ("Arachne").
She performed in many musicals such as Cats, Miss Saigon, The Music of Lloyd Webber Concert Tour (understudying Sarah Brightman), Oh What A Night, 25th Annual Putnam County Spelling Bee, as the lead Frugue girl in Sweet Charity, and took the role of Eponine in the 10th Anniversary Australasian Tour of Les Miserables.
Mendoza appeared in Golden Globe award-winning film Moulin Rouge!, as the lead dancer China Doll.
She filmed several US series including Farscape and played Liat in ABC's South Pacific opposite Harry Connick Jr. and Glenn Close.
She workshopped the lead role of Molly in Matthew Warchus' production of Ghost which was based on the original screenplay by Bruce Rubin.
Mendoza appeared in the Leos Carax-directed musical film Annette, starring Adam Driver and Marion Cotillard.