Answer
Sara Gilbert is an American actress and television host. She is best known for her roles as Darlene Conner on the ABC sitcom Roseanne (1988–97, 2018), as Leslie Winkle on the CBS sitcom The Big Bang Theory (2007–19), and as Barbara Coopersmith on the Fox sitcom The Conners (2018–present). After Roseanne ended in 1997, Gilbert reprised her role as Darlene in the spin-off series The Conners, which premiered in 2018.