“There are nine of us who escaped. Number one was killed in Malaysia. Number Two was murdered in England. Number Three was hunted down in Kenya. Before they can come for the others, they will come for me. I am next. I am Number Four.” – Number Four, I Am Number Four
Number Four also known as John Smith is one of the ten Loric children who escaped from Planet Lorien, and is one of the seven remaining Loric Garde. His Cêpan was Henri. He longs to live as a normal person who isn't fighting for their very survival everyday.
Henri Smith
Henri Smith was Four's Cêpan , his guardian. Henri was assigned to Number Four, at a young age, to help him when his Legacies started to develop. He also travelled to Earth with Four, after the Mogadorians' attack Lorien.
Sarah Hart
Sarah Hart is a former cheerleader, school photographer, all around girl next door, and the first and last human to ever capture John’s heart. Love on Lorien is unlike love on Earth—teen romance isn’t fleeting; it can last a lifetime. So falling for Sarah changes everything for John. She is John’s reason to stop running. Although he’s become used to running from town to town, he knows that leaving Paradise will mean leaving his heart and his love behind—and he’s going to protect Sarah, protect their love, no matter the cost.
Sam Goode
Samuel "Sam" Goode'is a former sophomore at Paradise High School. He was constantly bullied by the football team (mostly Mark James), because of his fascination with Space and Extraterrestrials. He became friends with John and eventually learned everything about John's and Henri's past. Both John and Henri trust him with their secret and Sam told them that he would keep it. After the battle at the school, Sam travels with John and Six to try and find the other Lorien Children and his father.
Number Six
Number Six, also known as Maren Elizabeth, is one of the ten Loric children who escaped from Lorien, and is one of the seven remaining Loric Garde. Her Cêpan , Katarina was killed by the Mogadorians three years before she found John. She began to track John, soon after Number Three was killed.
Bernie Kosar
Hadley, also known as Bernie Kosar or BK on Lorien, is a Chimæra that traveled with Number Four to Earth and watched over him. Since his reveal in beagle form in Paradise, Bernie Kosar has proved to be a valuable sidekick and member of the team.