Sarah Chalke
Sarah Chalke (/ˈtʃɔːk/; born August 27, 1976) is a Canadian actress known for portraying Dr. Elliot Reid on the NBC/ABC comedy series Scrubs, the second Rebecca "Becky" Conner on the ABC sitcom Roseanne, and Stella Zinman in the CBS sitcom How I Met Your Mother. She has also had a recurring role in the third season of ABC sitcom Cougar Town.