Margaret

Margaret is a female red robin who works as a waitress in the coffee shop, across the street from the park. She's one of the few animal characters on the show that wears clothing. Mordecai has a major crush on her, and is always finding ways to make excuses to go to the coffee shop to see her. Margaret is voiced by Janie Haddad.

Appearance
Margaret appears identical to Mordecai with a few exceptions:
 * Feathers are red and white color (white feathers sometimes appear pinkish)
 * Beak is curved
 * "Spot" on the side of her head is comma shaped and brownish
 * She sports no stripes
 * Hairstyle is curved

Cartoon Network Character Page Description
"This red breasted robin works as a waitress at the coffee shop across the street from the park. Mordecai has a huge crush on her and is always finding excuses to take coffee breaks when she's working."

Mordecai
Margaret is Mordecai's crush, and is one of her best friends. Episodes that Margaret appear in are usually accompanied by a rash attempt by Mordecai to initiate a conversation, which proves to be an arduous task itself.

In Season One, they appear to be friends ever since Margaret's first appearance in Caffeinated Concert Tickets (possibly earlier). Much to Mordecai's dismay, Margaret seems to be totally oblivious toward Mordecai's crush on her, even showing off her other dates (one of which she dumped right away) in front of him.

In Season Two, the both of them start to develop more than just a friendship, albeit more haphazardly than needed (i.e It's Time, Brain Eraser and Do Me A Solid). Despite the aforementioned "bumps on the road", the two keep their friendship intact. At this time, Margaret spends more time with Mordecai, mostly since she lacks any boyfriends in each episode, unlike Season One.

In Season Three, there are numerous times when the two appear much more closer than they normally are (i.e.Slam Dunk, Margaret calls Mordecai hot, Camping Can Be Cool, when the two nearly held hands; Cruisin, where they did' hold hands, even if very briefly). It is said in a possible Mordecai and Margaret Episode, the two could become "more than just friends".

Rigby
Margaret rarely interacts directly to Rigby, in spite of the fact that the two meet every day.

Eileen
Margaret and Eileen are best friends the way Mordecai and Rigby are. She is close to Eileen and does solids for her all the time (Do Me A Solid). Margaret hopes for Eileen and Rigby to become closer.

Appearances

 * Caffeinated Concert Tickets
 * Meat Your Maker (cameo)
 * The Unicorns Have Got To Go
 * Mordecai and the Rigbys
 * It's Time
 * Peeps
 * High Score
 * Brain Eraser
 * Do Me A Solid
 * A Bunch of Baby Ducks
 * First Day (cameo)
 * Skunked
 * Bet To Be Blonde
 * Camping Can Be Cool
 * Slam Dunk
 * House Rules
 * Cruisin
 * Weekend at Benson's (cameo)
 * Butt Dial

Trivia

 * In Camping Can Be Cool, Margaret mentions that she attends a college in the City and also plans to quit her job at the Coffee Shop as soon as she graduates (much to Mordecai's chagrin)
 * Earlier in the same episode, she also mentions that she hasn't had a boyfriend for a while. The last time she has had a boyfriend was in Mordecai and the Rigbys (also one fake boyfriend in Cruisin')
 * Despite being described as a robin, Margaret has red plumage, which is odd since only male robins carry any red feathers in reality.
 * Margaret's car strongly resembles a 1982-1985 Honda Accord hatchback.
 * In Do Me A Solid and Cruisin, Margaret wears the same outfit.
 * In Do Me A Solid she mentions that her father used to bring her to play mini golf when she was a kid.