Margaret Smith is a main/supporting character in the Cartoon Network series Regular Show. Margaret is a female robin who works as a waitress in the Coffee Shop, with her best friend Eileen, across the street from The Park. Mordecai has a large interest in her, and is always finding ways to make excuses to go to the coffee shop to see her. Margaret made her first debut in Caffeinated Concert Tickets. Margaret is voiced by Janie Haddad.