Margaret is
Reg margaret
a character in Regular Show. She is a red robin and she works as a waitress at the coffee shop. Mordecai has a large interest in her, and is always finding ways to make excuses to go to the coffee shop to see her.

A running gag in the show is Margaret having many different boyfriends throughout it, much to Mordecai's dismay.

Community content is available under CC-BY-SA unless otherwise noted.