Sarah Louise Christine Chalke is a Canadian actress and model. She is known for portraying Elliot Reid on the NBC/ABC comedy series Scrubs, the second Becky Conner on the ABC sitcom Roseanne, Stella Zinman on the CBS sitcom How I Met Your Mother, and Beth Smith on Adult Swim's adult animated science-fiction series Rick and Morty. She also had a recurring role on the third season of the ABC/TBS sitcom Cougar Town. She has done voice acting for the Netflix series Paradise PD and was a star cast member in Firefly Lane, which premiered on Netflix in February 2021. As of November 2021 Chalke voices Stella, the tactical officer in the Netflix series Dogs in Space.