Marc is Wilhelmina's little scheming, always hilarious, incredibly flamboyant assistant.  He normally is scheming with the recepionist, Amanda.  Marc is openly homosexual and dates photogropher Cliff in season 2.  However, they ended up breaking up after Marc cheated on Cliff.

Marc St. James Quotes

Marc: Complimentary mimosas!
Betty: Really?
Marc: No, but if you get the filing right, I won't beat you with a bag of oranges.

Uck. Christina must have a doughnut in her pocket

Marc

Ugly Betty Quotes

We have to distract her, does anyone have a six foot hoagie?

Amanda [about Betty]

Wilhelmina: Who did you work, Shapiro?
Fabia: Fabia has had no work done
Wilhelmina: Please there's enough left over skin from your surgeries to make a bed for my cat