Ruby Esmaquel (born January 3, 1966), known professionally as Rubi Rubi is a Filipino actress, comedian, acting teacher and entrepreneur.^[1] Her first onscreen appearance was in the 2002 film, I Think I’m In Love, followed by her first teleserye series, Impostora (2007).^[2] With a career spanning two decades, she is recognized as one of the country's most prominent character actresses in film and television. She is best-known for her performance as "Manang Precious" in Dirty Linen (2023).

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Before entering the show business, Rubi Rubi became a stand-up comedian in 1997 at the pioneering comedy bar in the country, Music Box. After signing up a five-year managerial contract under DMV Entertainment, she made the rounds of other comedy bars such as Library, 22nd Street Bar (where she became an exclusive performer four nights a week) and Basilica.^[3]