Lilly Moscovitz is Mia's best friend and Michael's younger sister. Lilly seems to be very self-centered. When she finds out that Mia is a princess, at first, she is not very supportive. Lilly gets mad at the portrayal of herself in a made-for-TV movie they make about Mia. Lilly writes a letter to the producers and ends up landing a breakfast meeting them.
Lilly has her own local access TV show. When she meets with the movie producers, they offer to try to get her show on a cable network. Lilly has a long-term boyfriend, Boris, who is also a member of her brother's band.
