Eragon is a 16 year old ex-farm hand from Carvahall, named for the very first Dragon Rider and now one of the last dragon riders. He finds a dragon egg while hunting in the local mountain rages and trains his dragon in secret. When the Ra’zac attack and kill his family looking for Saphira, he takes to training with Brom and grows into a man while chasing down the Ra’zac. He is very prone to overreaction and anger over injustices and must learn to control the gifts he’s been given by his teachers. In Eldest he travels to the Elf City to train further with Oromis.
The dragon found in the Spine by Eragon, Saphira is born of an egg stolen by the Varden from the wicked king. She is kept hidden until Eragon found and raised her. Her wisdom is paramount to Eragon’s growth and via telepathy, she communicates with Eragon, a link created when they first touched. Ironically, her name is the same as Brom’s dragon before she was killed. The two become close friends and confidants in their journeys.
Arya is the elf that Eragon saves in the first novel. Eragon falls in love with her eventually, to which Saphira takes delight in teasing. When Eragon’s training with the elves is announced, we know that they will spend more time together in the future. She travels with Eragon to the Elf City and is revealed to be one of Queen Islanzadi’s daughters.
Having lived under the rule of Galbatorix, possibly having become a general over time, Murtagh escapes and finds Eragon, the rumored next dragon rider. He is reluctant to join the Varden as Brom killed his father and his relation to the king keeps the Varden from trusting him until he proves himself in battle. He is captured by a band of Urgals in the beginning of the story. Later, he betrays Eragon and is revealed to be Eragon’s brother.
The dwarf nephew of King Hrothgar and guide to Eragon and his companions while they are in Farthen Dyr. As a warrior of some report, he provides armor to both Eragon and Saphira that saves their lives in the battle with the Urgals.
The leader of the Varden, Ajihad welcomes the three to Farthen Dyr and allows Murtagh to be set free without being punished. He is a ruthless fighter, but a good leader. He dies in the early parts of the novel at the hands of the Urgals.
Roran is Eragon’s cousin, working in a mill and betrothed to Katrina. Through a vision, Angela mentions a family member betraying Eragon and when Eragon looks in on Roran, he sees him not working in a mill. The matter is left open for further exploration.
The evil king who rules Alagaesia from the capital city Urû'baen with dark magic and his enslaved black dragon Shruikan. His most notable evil deed was killing all but the last three dragon eggs in Alagaësia, almost causing their race to go extinct.
As Eragon’s new mentor, Oromis is also known as The Cripple Who is Whole. He is an elf and a Dragon Rider. His dragon’s name is Glaedr.
After Ajihad’s death, Nasuada takes over as the head of the Varden. She is his daughter and an integral part of the defense against Galbatorix.