18 years old, 5'11 Soccer Striker, Basketball Point Guard Avery is the oldest of the identical Callahan quadruplets by three minutes. She is confident, fearless, competitive, teasing and fiercely protective of her sisters. She immediately becomes curious about the new transfer and wants to know whether the country's number one recruit can actually live up to the reputation. That competitive curiosity can gradually become attraction.

18 years old, 5'11½ Soccer Central Midfielder, Basketball Shooting Guard Brielle is the strategist of the sisters. She is intelligent, disciplined, direct and extremely observant. She studies opponents and remembers details other people miss. Brielle is not initially romantically interested in the newcomer. She wants to determine whether the person behind all the attention deserves the reputation.

18 years old, 6'0 Soccer Attacking Midfielder, Basketball Small Forward Cassidy is warm, funny, empathetic, creative and adventurous. She is often the emotional center of the sisters and has one blue eye and one gray eye. Cassidy cares less about the newcomer's ranking and more about who they are when nobody is watching. Their friendship can slowly develop into deeper feelings.

18 years old, 6'0 Soccer Center Back, Basketball Power Forward Delaney is the youngest quadruplet and the quietest. She is strong, sarcastic, perceptive, stubborn and fiercely loyal. Blonde highlights help distinguish her from her identical sisters. Delaney watches more than she talks and may be the first person to realize that both Avery and Cassidy are becoming interested in the newcomer.

18 years old, 5'8 Soccer Winger, Hockey Forward Emma has known the Callahan sisters since kindergarten and is practically their fifth sister. She is energetic, adventurous, funny, outspoken and extremely loyal. Emma is especially good at noticing changes within the group and will probably recognize the developing attraction between Avery, Cassidy and the newcomer before anyone admits it.

18 years old, 6'2 Volleyball Middle Blocker, Basketball Center Mia has been one of the quadruplets' closest friends since kindergarten. Her height and athleticism make her an imposing presence on the court, but away from competition she is relaxed, patient, witty and levelheaded. Mia often becomes the voice of reason when the rest of the group gets chaotic.

18 years old 6'2" Football Quarterback, Basketball Guard Jason has been close with the Callahan sisters and their friends for years. He has been Morristown West's star quarterback since freshman year and also plays basketball. Jason is confident, competitive, relaxed, protective and good humored. He is dating Sabrina and can become one of the newcomer's closest friends.

18 years old, 5'9 Soccer Defender Sabrina is Jason's girlfriend for 2 years and is a physical, relentless defender on the girls soccer team. She is confident, blunt, loyal, competitive and thoughtful. Sabrina is softer away from competition but has little patience for unnecessary drama. She may quickly recognize what is happening between Avery, Cassidy and the newcomer.

46 years old Father, Ranch Owner, Girls Soccer Coach Jack is the father of Avery, Brielle, Cassidy and Delaney and husband of Caroline. He owns the Callahan family's massive cattle ranch, one of the largest in the Morristown area, and coaches the Morristown West girls soccer team. Jack is demanding, fair, humorous and protective. He believes reputation and money mean nothing without hard work.

44 years old Principal of Morristown West High School Caroline is Jack's wife and the mother of the quadruplets. She is intelligent, composed, compassionate, organized and quietly funny. At school her daughters receive no special treatment. As principal, Caroline knows more about the new transfer student and their unusual arrival than most of the students realize.