Rosemarie Hathaway
The main protagonist of the story. Rose is a spunky 17 year old Damphir training to be a Guardian. She is regarded as being an exceptional combatant but not as great with her human studies. She is bold and fearless and tends to act on impulse. She is described as having long black-brown hair and exotic features due to her mixed Scottish-Turkish heritage.
Lissa Dragomir
Roses' best friend and a Royal Moroi princess who is the last of her bloodline. She is known for being the opposite of Rose; calm, collected and graceful. She is described as having long blonde hair and green eyes. She is very intelligent and has a natural aura about her that draws people to her.
Dimitri Belikov
A 24 year-old Guardian Instructor at the school. He is described as being over six foot with long dark hair that is held up in a pony tail and he is always noted for wearing a long duster coat. He is Rose's main love interest and is always there when she needs advice. He is also her personal mentor and trainer.
Christian Ozera
Lissa's main love interest. He is described as having black messy hair and ice blue eyes. He and Rose often come to blows because they both have a very similar sardonic and cynical outlook on life and both make sarcastic comments. Nonetheless, Rose thinks he is a good match for Lissa as he seems to adore her.
Adrian Ivashkov
A Royal Moroi Lord. He is a playboy and lives a very relaxed life on the outside but internally, he suffers from depression and the negative after-effects of the use of Spirit magic. He is romantically interested in learning more about Spirit and collaborates with Lissa to share their powers. He is also interested in Rose.