Scott McCall is a 17-year-old, 5'10" bitten werewolf with warm tan skin, short dark-brown hair, expressive brown eyes, strong eyebrows and a lean, athletic physique built from lacrosse and constant supernatural combat; when wolfed out, he remains roughly the same height and human-shaped but develops glowing red Alpha eyes, pronounced brow ridges, sharp cheekbones, pointed ears, extended claws, fangs and thicker facial hair that gives him a more powerful, predatory appearance. He is compassionate, courageous, loyal, protective and strongly moral, preferring to save people rather than kill them, though his determination to see the best in everyone can make him overly trusting, self-sacrificing and reluctant to make ruthless decisions even when danger threatens his pack.

Stiles Stilinski is a 17-year-old, 5'10" human with pale skin, short dark-brown hair, expressive brown eyes, prominent moles and a lean, wiry physique shaped more by frantic running and survival than athletic strength; because he is fully human, he has no wolfed-out form, supernatural eyes, claws or fangs, relying instead on his intelligence, research skills, quick reflexes and baseball bat. He is sarcastic, hyperactive, observant, fiercely loyal, emotionally intense and exceptionally clever, often using dark humor to hide his anxiety and trauma, while his paranoia, impulsiveness and tendency to investigate danger alone frequently place him at risk even though he remains one of the pack’s most valuable strategists.

Derek Hale is a 24-year-old, 6'0" born werewolf with light olive skin, thick dark-brown hair, striking green-hazel eyes, heavy brows, dark stubble and a broad-shouldered, lean-muscular physique built through years of combat and supernatural strength; when wolfed out in his humanoid form, he remains approximately the same height but develops glowing blue eyes from taking an innocent life, pointed ears, pronounced brow ridges, sharp fangs, claws and thick facial hair, while his rare fully evolved form becomes a large black wolf standing roughly three feet at the shoulder with dense dark fur and luminous blue eyes. He is guarded, brooding, stubborn, territorial, fiercely protective and deeply loyal beneath his harsh exterior, carrying intense guilt and mistrust from the Hale fire, Paige’s bite and Kate Argent’s manipulation, which causes him to push others away even while repeatedly risking himself to protect them.

Allison Argent is an 18-year-old, 5'8" human hunter with fair skin, long dark-brown hair, deep brown eyes, defined features and a slim, athletic physique developed through archery, gymnastics and intensive combat training; because she is fully human, she has no wolfed-out form, supernatural eyes, claws or fangs, relying instead on exceptional aim, agility, knives, bows and Argent weapons. She is brave, determined, intelligent, passionate and fiercely protective, but her pride, jealousy and need to prove herself can make her judgmental, emotionally reactive and deeply resentful toward Fiona, especially because Chris openly favors and shelters her younger sister while expecting Allison to carry the responsibilities of the hunter legacy.

Liam Dunbar is a 15-year-old, approximately 5'8" bitten werewolf with fair skin, short light-brown hair, bright blue eyes, youthful features and a compact athletic physique developed through lacrosse and years of struggling with explosive anger; when wolfed out, he remains roughly the same height anc humanoid-shaped but develops glowing golden eyes, pointed ears, pronounced brow ridges, sharp fangs, claws and thick facial hair that make him look far more feral and intimidating. He is brave, competitive impulsive, stubborn and fiercely loyal beneath his temper, frequently battling insecurity and intermittent explosive disorder while trying to prove that he belongs in Scott's pack, and his crush on Fiona makes him unusually shy, protective and eager to impress her even though her gentle attention leaves him flustered and completely tongue-tied,

Lydia Martin is an 18-year-old, approximately 5'3" Banshee with fair skin, long strawberry-blonde hair, striking green eyes, polished makeup, elegant features and a petite, slim physique; because she is not a werewolf, she has no wolfed-out form, claws, fangs or supernatural facial changes, though her Banshee abilities give her piercing screams, heightened intuition, premonitions, supernatural hearing and an instinctive connection to death. She is brilliant, fashionable, confident, observant, emotionally guarded and fiercely loyal, using intelligence and sarcasm to conceal her fear while gradually embracing her powers and becoming one of the pack’s most valuable investigators.

Paige Krasikeva is a 24-year-old, approximately 5'6" bitten werewolf with fair skin, long dark-brown hair, soft brown eyes, delicate features and a slender, graceful physique; when wolfed out, she remains roughly the same height and humanoid-shaped but develops glowing golden eyes, pointed ears, pronounced brow ridges, sharp fangs, claws and darker facial markings that contrast with her carefully fragile appearance. She presents herself as sweet, shy, innocent, supportive and emotionally vulnerable, yet beneath that charming mask she is deeply jealous, attention-seeking, calculating and manipulative, using passive-aggressive compliments, believable tears and innocent-sounding threats to force Fiona out of the pack while ensuring Derek and the pack continue viewing Paige as the victim and Fiona as the problem.

Jordan Parrish is a 24-year-old, 6'0" human-presenting Hellhound with fair skin, short reddish-brown hair, striking green eyes, defined features and a tall, lean-muscular physique shaped by military service and police training; when his dormant Hellhound nature activates, he remains humanoid and approximately the same height but develops blazing orange eyes, charred-looking skin, glowing cracks across his body, supernatural claws and an intense aura of fire and heat rather than a werewolf’s fur or fangs. He is calm, compassionate, courageous, observant and naturally protective, treating people with patience and respect while concealing a quietly intense side that becomes fearless and relentless around supernatural danger, especially when Fiona is threatened and his Hellhound instincts begin identifying her as someone precious whom he must guard at any cost.

Luke Argent is a 23-year-old, 6'0" human hunter with fair skin, tousled dark-brown hair, warm amber-brown eyes, strong features and a tall, lean-muscular physique shaped by years of disciplined combat training; because he is fully human, he has no wolfed-out form, supernatural eyes, claws or fangs, relying instead on exceptional strength, speed, strategy, marksmanship and close-quarters fighting skills. He is intelligent, compassionate, brave, calm under pressure and morally principled, following the Argent code to protect innocent people rather than blindly kill supernatural creatures, while his intense devotion to Fiona makes him fiercely overprotective, openly affectionate and dangerously ruthless toward anyone who humiliates, threatens or harms his baby sister.