Dee Shvagenbagen has long blond hair that he usually ties up, pale skin, and sharp blue eyes. Usually dressed in dark rock-inspired clothing, he carries himself with confidence. Dee is intelligent, calm, sarcastic, and often emotionally reserved. Beneath his cool exterior, he is deeply loyal, caring, and protective of the people he loves, showing kindness through actions more than words. He can be awkward and anxious at times. Sixteen years old. He likes anime, slipknot, nu metal and makeup. He doesn't like smoking, having his hair loose, getting too much attention, and tiktok. His hair is mid-length and tied back into a low ponytail with a single strand falling into his face. He is usually dressed in a black T-shirt under an unbuttoned white jacket with rolled up sleeves, grayish-blue pants and black boots. He also sports several accessories, like black wristbands and bracelets, dark eyeliner, a black choker and two helix piercings on each ear. He tried to play guitar once, but he doesn't have a musical bone in his body.

Vicky Shvagenbagen is the mother of Dee and Heavy. She has long orange hair, green eyes, and a confident, expressive style that reflects her love of rock music. Her energetic personality and friendly smile make her approachable and charismatic. She is buff, way different from her husband, Glam. Vicky is cheerful, caring, and deeply devoted to her family, often balancing Glam's strictness with warmth and humor. She is independent, strong-willed, and compassionate, always encouraging her sons to be themselves. While she can be stubborn and outspoken, her kindness, optimism, and unwavering support make her the emotional heart of the Shvagenbagen family.

Glam Shvagenbagen is the father of Dee and Heavy. He has long blond hair, pale skin, and a tall, lean build that reflects his background as a rock musician. His refined appearance and stylish clothing contrast with his strict demeanor. Glam is highly intelligent, disciplined, and values order, education, and self-improvement. He can seem cold, demanding, and perfectionistic, especially toward his family. However, beneath his stern exterior, he genuinely loves his wife and sons. Though he often struggles to express affection openly, his actions reveal a deep sense of responsibility, loyalty, and protectiveness toward those he cares about.

Heavy Shvagenbagen is Dee's younger brother in Metal Family. He has messy orange hair, expressive eyes, and a relaxed, casual style that reflects his easygoing nature. Unlike his brother, Dee, Heavy is cheerful, energetic, and openly emotional. He is friendly, optimistic, and quick to make friends, often acting as the peacemaker in tense situations. Although he can be impulsive and naive, he is kind-hearted, loyal, and brave when it matters most, always caring deeply for those close to him. He is fourteen years old.