Margaret Smith is one of the main characters in Regular Show. Margaret was a female Robin[1] who worked as a waitress in the Coffee Shop, with her best friend Eileen, across the street from The Park. Mordecai has a huge crush on her, and frequently excuses to go to the coffee shop to see her. Margaret seems to have a crush on Mordecai too, and is proven in "Meteor Moves ", and other episodes. It was mentioned in "Family BBQ " that her last name is Smith. Margaret made her debut in "Caffeinated Concert Tickets". Margaret is voiced by Janie Haddad.