Carmen Osbahr is a Mexican-American puppeteer and actress. She has performed Rosita on Sesame Street since 1991, and also performed Kiki Flores on The Puzzle Place and Lily on Johnny and the Sprites. Carmen Osbahr is a Mexican-American puppeteer and actress. She has performed Rosita on Sesame Street since 1991, and also performed Kiki Flores on The Puzzle Place and Lily on Johnny and the Sprites.