Mr. Yan
Ewww, Quentin is so obsessed with "Big Sister" that he wants to be with her NOT knowing it's actually Nora...his cousin. His poor little heart is in for a shock. He'll let it sink in knowing "Big Sister" is a Smith and be full of pride. Since Justin and the Smiths come from the same martial arts sect...being tied to Nora the feud between both of the schools can end. Mr. Quinn will probably be upset. He's always upset with Nora. Mandy's appearance allows him to freely move around as people don't focus on someone that looks/acts like him.