Mia is very close to her family. She loves coffee, the cello, and her boyfriend, Adam. She thinks of herself as a nerd but not the type that tries to be cool. She's a B student and a serious musician. As a cellist, she has surpassed all her teachers and has dreams of attending the Juilliard School in New York City. All of Mia's dreams are put on hold when she and her family are in a terrible car accident. Her parents and brother die, and she doesn't know whether she can go on without her family.
Adam is a year older than Mia and seems very stable for someone his age. He likes Mia because of her interest in music. He is proud of her and takes her to concerts, even when she doesn't really fit in. He genuinely wants her around. Adam is self-sacrificing, in the end even offering to quit his band and move to New York with her to make her happy.
Kim is a serious photographer and a good friend to Mia. Her mother worries constantly; for this reason, Kim is very sheltered. Everyone thinks that Kim and Mia are alike because they're dark and quiet and serious. When Mia is involved in the accident, Kim helps Adam see Mia even though she's not very fond of him. She is a supportive friend who even talked Mia's parents into sending Mia to orchestra camp.
Teddy is kind, affectionate, and loving. He especially loves his big sister. He likes to play the drums. Even though he is into rock music, he respects Mia's talent and choice of music.
Kat is an understanding mother who loves rock music. She grew up in a family with an alcoholic father but has worked to create a better family for her own children. She is not overprotective and therefore does not police Mia's activities with Adam. She encourages Mia to pursue her dreams and is proud of her.
Denny is a teacher. He gave up a promising career as a songwriter to have a family, and he has no regrets. He still occasionally jams with his friends, though. He wears bow ties and acts the part of the quirky teacher. He helps Mia as a cellist by buying her a cello, finding teachers for her, and encouraging her to pursue her dreams.