Four / John Smith: One of the nine garde sent from Lorien to Earth to preserve the life of your planet. It follows that the Mogadorians have to catch and kill. Acquires the identity of John Smith and lives in Paradise (Ohio). Their legacies (powers) are immune to fire, emitting light through the hands, the ability to understand animals, super speed, super strength, superhuman hearing and telekinesis.
Henri: Is cêpan (Guard) Four on Earth. They have to ensure their good and teach him to use his legacy and keep it secret. Pretend you are the father of four. He left behind the woman he loved to go to Earth with him.
Sarah Hart:A teen amateur photography and who was the girlfriend of Mark James before. Meet Four and likes him from the start (and the girl is very nice). In the middle of the book becomes his girlfriend.
Teresa palmer :(number six) One of the girls sent from Lorien to Earth. Appears in the final third of the book. Search all numbers that are to join forces even if it means that the protective spell that prevents its murderers kill disorderly break. Their legacies are invisibility, telekinesis, climate control, controls the elements, superstrength and superspeed.
Sam Goode: A boy whose hobby are aliens and aliens. I used to go to find UFO `s with his father, but it mysteriously disappeared without a trace, which made him create the theory that he was abducted. Four friend is already done about half the book discovers his true identity and vows not to reveal it.
Bernie Kosar: A dog that finds and acquires Four, whose neck plate reveals that his name is Bernie Kosar, that of a football player. It actually is an animal called chimaera come from Lorien that can acquire the shape you want, and that has always been near Four without noticing this, adquieriendo different forms as they moved from place to place.
Mark James: Is football player and ex-boyfriend of Sarah. It's the jealous type, so when he discovers that Sarah and Four are becoming friends decide to make life miserable and harassing. At the end of the book, become friends.
The Mogadorians:are an evil alien species. Led by their merciless ruler, Setrákus Ra, they attacked the planet Lorien when it was at its most vulnerable. The planet’s Elders were gone, and the attack came out of nowhere. The Lorien were unprepared and hardly stood a chance. It was during the attack that the nine alien teens escaped, along with their Cêpans. But the Mogadorians won’t be satisfied until every last Lorien is killed, and they are now on Earth hunting them down one by one.
STORY: Extraordinary teen John Smith (Pettyfer) is a fugitive on the run from ruthless enemies sent to destroy him. Changing his identity, moving from town to town with his guardian Henri (Olyphant), John is always the new kid with no ties to his past. In the small Ohio town he now calls home, John encounters unexpected, life-changing events-his first love (Agron), powerful new abilities and a connection to the others who share his incredible destiny.