Paula Newsome plays the part of astrophysicist Tyra DeNeil Fields. Her name is a play on the name of real-life astrophysicist, planetary scientist, author, and science communicator Neil deGrasse Tyson, well known for the series Cosmos: A Spacetime Odyssey (2014). Note the similarities: Tyra/Tyson, deNeil/Neil, and especially Fields/Grass.