Sloan Riley

Sloan Riley is the daughter of Mark Sloan.

Personal life
She is described as intensely vapid and rude. She even went so far as to say to Mark,"What are you lookin' at you old perv?" She also asked Lexie for money. She, like her own mother, became pregnant at 18. She then fled to Seattle in hopes of finding her biological father, since she had nowhere else to go.