Age: 21 James is the male lead. He is clever, observant, competitive, sarcastic, confident, and difficult to read. He has dark messy hair, striking eyes, sharp features, and an effortlessly intimidating presence. He's an excellent motorcycle rider and has a habit of disappearing for late-night rides. When he first sees the Olivia riding past in her helmet, he assumes she's a boy. That misunderstanding becomes increasingly embarrassing when he discovers that the mysterious biker is actually the beautiful girl from his college class. He is fascinated by her confidence, intelligence, independence, and ability to surprise him.

Age: 24 Alexander is the oldest and the unofficial leader of the family. Calm, sophisticated, highly intelligent, and composed, he rarely raises his voice because he doesn't need to. He is protective of his brothers and takes responsibility for the family seriously. He rides a black motorcycle and prefers long nighttime rides when he needs time alone. He has dark hair, sharp features, an athletic build, and an intimidatingly calm presence. He notices the olivia's confidence almost immediately and becomes one of the first people to realize that there is much more to her than she shows.

Age: 20 Sebastian is charming, playful, outgoing, and mischievous. Unlike James, he makes friends easily and loves teasing his brothers. He's the social one of the family and can turn almost any awkward situation into a joke. He is immediately fascinated by the Olivia's personality and becomes one of her easiest friends. Unfortunately for James, Sebastian notices his brother's interest in her almost immediately and never lets him forget about it.

Age: 18 Lucas is quieter than his brothers but incredibly intelligent and observant. He spends more time listening than speaking and often notices things everyone else misses. He's sarcastic in a subtle way and has a surprisingly mischievous sense of humor.He becomes fascinated by the olivia's motorcycle skills and eventually discovers that the mysterious biker and the girl from college are the same person. Rather than immediately revealing the secret, he enjoys watching his brothers try to figure it out.