Oscar-winning actress

I couldn't identify the specific Oscar-winning actress mentioned in the episode. However, I can suggest a few possibilities: Gilda Radner, who won an Emmy Award for her work on 'Saturday Night Live', or Tina Fey, who won an Emmy and a Golden Globe for her work on '30 Rock'. Both actresses began their careers in comedy and have since transitioned to acting. They are both known for their work on 'Saturday Night Live' and have appeared in numerous films and television shows.