In my book Take the Cannoli Sarah's Friends take a role that they that make fun of her when she messes up when playing her instruments. To me there not real friends of her's. They Gibson's store they sort of rep. the devil and evil with having 666 price tags everywhere. Sarah feels that they neede to go to church and read the Bible.
In my own life i have my parents well basically my whole family as my supporting characters. They gave impact me by just being there for me and helping me through my day.