17 years old, a lean athletic teenage boy with tan skin, short dark brown hair, warm brown eyes, and a kind smile; a compassionate, loyal, brave, stubborn, and idealistic Bitten Werewolf who constantly clashes with Derek over leadership and morality while secretly developing a huge crush on Fiona

17 years old, a lean teenage boy with fair skin, short dark brown hair, expressive brown eyes, and a mischievous grin; an intelligent, sarcastic, fiercely loyal, brave, and quick-witted Human who is Scott's best friend and Fiona McCain's extremely overprotective older cousin who lovingly calls her "Princess Cinnamon Roll."

23 years old, a tall powerfully muscular man with short dark brown hair, piercing green eyes, light stubble, and a brooding expression; a fiercely protective, stoic, powerful, stubborn, and emotionally guarded Born Werewolf (Alpha) who constantly clashes with Scott while secretly fighting his overwhelming mate instincts and growing love for Fiona McCain

17 years old, a tall, lean teenage boy with pale skin, curly dirty-blond hair, striking blue eyes, and sharp features; a Bitten Werewolf who initially comes across as guarded, cocky, sarcastic, smug, and sometimes openly antagonistic after joining Derek's pack, using his new confidence to mask years of abuse developing a crush on Fiona

17 years old, a very tall, broad-shouldered teenage boy with dark skin, closely cropped black hair, kind brown eyes, and an imposing build; a quiet, calm, observant, gentle, dependable, and fiercely protective Bitten Werewolf who rarely speaks, values loyalty above all else, and develops a quiet admiration for Fiona because she him by his intimidating appearance.

17 years old, a beautiful teenage girl with fair skin, long blonde hair, brown eyes, and a glamorous, confident style; a bold, flirtatious, sassy, fiercely confident, manipulative, attention-seeking, and bitchy Bitten Werewolf who openly flirts with Derek, secretly envies Fiona's natural innocence and the attention Derek gives her, and hides her jealousy behind a deceptively sweet smile.

Late 30s. a tall. lean man with light skin, short dark brown hair, piercing blue eyes, and a calculating smile; a cunning, charismatic, manipulative, highly intelligent, sarcastic, and unpredictable Born Werewolf who enjoys exploiting people's weaknesses and develops an unsettling fascination with Fiona because her kindness and innocence make her both intriguing and useful in his schemes to become alpha again