Caleb Danvers, played by Steven Strait, is the captain of Spencer Academy's swimming team. He is the oldest of "The Sons of Ipswich" and the only child of William and Evelyn Danvers. He is exceptionally competitive and expects nothing other than the best from himself. A star student and freestyle champion, his future is lined with his intelligence, hard work and strong will to win. Sarah Wenham is his girlfriend, whom he met while attending an end of summer party and is very in love with her. He is the most cautious in the group and is always careful not to use his powers too much. However, the legacy of the Danvers family weighs heavily on him. Living at his big family estate, he harbors a dark secret which he eventually shares with Sarah. He is the only one of the four who has seen up close the terrifying effects of their growing abilities. Now as his 18th birthday approaches, Caleb's abilities will escalate and his powers will be beyond imagination.

Reid Garwin

Deceitful and roguish Reid Garwin (Toby Hemingway), is the third oldest "Son of Ipswich". He is a brash and a persistent practical joker. He is always looking to stir up trouble, he even gets into a fight with Caleb for picking a fight in a club. He enjoys using his powers more, perhaps excessively more, than anybody else in the group. However, he isn't a rebel and does look up to Caleb to help him out of messes. Although he is reckless, he is very loyal to his friends.

Parry Pogue

Played by Taylor Kitsch,is the second oldest "Son of Ipswich". He is possessive of his longtime love, girlfriend Kate Tunney and gets jelous of her talking to other guys He's usually rude and disorderly when not in the company of Caleb. As the only son of one of Ipswich's most well-known families, much is expected from him. However, he is an average student and lacks academic interest. When he is not with girlfriend Kate, he spends his free time racing his beloved motorcycle in ways that would make the most reckless daredevils stare in awe. Pogue is an adamant friend no matter what or how tough the situation. He tends to pair off with Caleb.

Tyler Simms

The youngest of the Sons of Ipswich, Tyler, played by Chace Crawford, is shy and quiet. He can act somewhat awkwardly in front of girls and tends to pair off with Reid. He also has a new Hummer which he is very proud of. He is uncomfortable around tension and has a tendency to state the obvious once in a while. He also looks up to Caleb and his very loyal to his brothers of Ipswich.

Courtesy of Wikipedia