Addison Kate Singer, better known as Addie Singer, is the main protagonist of Unfabulous. She ocasionally writes songs about dealing with middle school. She is the younger sister of Ben Singer. Addie is the best friends of Geena Fabiano and Zach. She also appears in a cross-over episode of Drake and Josh called "Honor Council", in which she helps Megan play a prank on Josh while he sleeps. Addie is portrayed by Emma Roberts.