Stephanie Beatriz Bischoff Alvizuri is an American actress. She is known for playing Detective Rosa Diaz in the Fox/NBC comedy series Brooklyn Nine-Nine (2013–2021), Quiet in the Peacock action comedy series Twisted Metal (2023–present), and Carla in the musical film In the Heights (2021), and voicing Mirabel Madrigal in the Disney film Encanto (2021) and Vaggie in the adult animated musical series Hazbin Hotel (2024–present).

Rosa Diaz is a fictional character portrayed by Stephanie Beatriz in Brooklyn Nine-Nine, an American police procedural comedy. She was originally created under the name "Megan" but changed to Rosa when Stephanie Beatriz got the part over Chelsea Peretti, who would go on to portray Gina Linetti. Beatriz and her co-star, Melissa Fumero, were worried both before and after casting about losing their roles; as Latina actresses, both saw it as unusual that they were cast in the same network television show. Rosa became Beatriz's breakthrough role.