Sara Sweetman is director of education for the Guiding Education in Math and Science Network (known as GEMS-NET) at the University of Rhode Island, who appeared on Sesame Street with Murray, to explain science concepts.
Sweetman said: "I never aspired to be an actor. It’s not my forte. My forte is teaching youngsters and teaching teachers how to build their science lessons on an inquiry-based model. I was on hand for the filming to ensure that the science was covered accurately when the education content producer and a writer asked me to jump into a scene."