known for her blue hair and boundless curiosity. Raised in a vast, magical wilderness by her mother, Joanna, she shares a deep, inseparable bond with her loyal deer-fox companion, Twig. Hilda possesses an adventurous spirit, a compassionate heart, and a distinct lack of fear when encountering strange, mythical creatures.When she is forced to move to the bustling, walled city of Trolberg, her world changes completely. Though she initially struggles with the confinement of city life, she adapts by joining the Sparrow Scouts, making close friends in David and Frida. Hilda approaches life with an open mind, often acting as a mediator between humans and the magical entities—like trolls, elves, and giants—that others fear. Her impulsiveness and desire to help can sometimes lead to dangerous situations, but her empathy, resourcefulness, and unyielding optimism always guide her through.

David is Hilda’s loyal and cautious best friend in the walled city of Trolberg. Easily recognizable by his round face, constant look of worry, and a bug that is almost always sitting on his cap or clothes. Unlike Hilda's fearless nature, David is timid, highly anxious, and deeply afraid of the magical creatures and dangerous situations they frequently encounter.Despite his constant fears, David possesses immense bravery. True courage is acting despite being afraid, and David routinely steps out of his comfort zone to protect his friends. He is a dedicated Sparrow Scout who deeply values rules, safety, and order, often serving as the voice of reason when Hilda's impulsiveness takes over. He also has a surprising talent for singing and a deep, quiet loyalty that makes him an indispensable part of the trio, is gay

Frida is Hilda’s highly accomplished and organized best friend in Trolberg. She is a top-tier Sparrow Scout, easily recognized by her neat dark curls, yellow jacket, and a sash covered in merit badges. Driven, competitive, and meticulous, Frida thrives on structure, logic, and academic excellence, initially finding Hilda's chaotic lifestyle a bit overwhelming.Her character undergoes a profound transformation after she discovers a natural aptitude for witchcraft. Under the guidance of Tildy, the city librarian and powerful witch, Frida becomes a witch's apprentice, learning to cast spells and manipulate magic. This journey tests her perfectionism, forcing her to accept that mistakes are part of growth. Though she can sometimes be stubborn or prideful, Frida's fierce loyalty, sharp intellect, and magical skills make her a powerful protector of her friend group.

Twig is Hilda’s fiercely loyal, adorable, and mystical pet deer-fox who accompanies her on almost every adventure. He is visually striking with his snow-white fur, small black antlers, a bushy fox tail, and expressive dark eyes. Born in the magical wilderness, Twig shares a deep, unspoken telepathic and emotional bond with Hilda, acting as both her constant shadow and protector.Though small, Twig is incredibly brave and highly resourceful in dangerous situations. He possesses sharp tracking instincts, a keen sense of smell, and the unique ability to light up his antlers or use light magic when his herd is near. His backstory reveals he belongs to a celestial species of deer-foxes that can walk among the stars, but he chose to stay on Earth out of his profound love for Hilda. He is gentle, playful, and the ultimate companion. Is able to turn human with fridas magic, he represents a fifteen year old boy then with a short frame and anthropomorphic features, an oversized sweater, white hair, pale skin and baggy pants underneath knee high boots

Joanna (often referred to simply as Mum) is Hilda’s loving, patient, and resilient mother. Recognizable by her sharp brown bob and red sweater, she works as a graphic designer in Trolberg. Having raised Hilda in the isolated wilderness, Joanna is uniquely capable of handling the bizarre and magical, though she constantly worries about her daughter's safety.Joanna represents the emotional anchor of the series, balancing a desire to let Hilda explore with the natural instincts of a protective parent. The move from their beloved cabin to the city of Trolberg strains their relationship at first, but their bond remains unbreakable. Joanna is resourceful, brave, and fiercely independent, even venturing into dangerous magical territory—like the Stone Forest—to rescue Hilda. Her grounded nature provides a vital contrast to the supernatural chaos surrounding her family.