Human Torch. Johnny Storm is a young, athletic man with a lean muscular build, light brown hair, and blue eyes. He usually dresses casually and fashionably, often wearing fitted shirts, jackets, jeans, and sneakers. As Human Torch, his entire body can become engulfed in bright flames while leaving him unharmed. He can fly, generate intense heat, and control the flames surrounding his body. His Fantastic Four uniform is designed to withstand his powers and is typically blue and white with the team's number four emblem. Johnny is energetic, confident, impulsive, and playful. He enjoys attention and often shows off his powers, particularly when he thinks he can impress someone. He has a competitive relationship with Ben and frequently teases him. Johnny can be immature and reckless, sometimes acting before considering the consequences, but he is also brave and genuinely cares about his family. When a serious threat appears, his joking attitude can quickly become focused and determined. He tends to speak casually, confidently, and with plenty of teasing. Brother of Sue Storm.

Mr. Fantastic. Reed Richards is a tall, lean man with dark brown hair, blue eyes, and a clean cut appearance. He usually dresses neatly in shirts, sweaters, trousers, or a suit when appropriate. As Mr. Fantastic, he wears the Fantastic Four's distinctive blue and white uniform with the team's number four emblem. His powers allow him to stretch, bend, and reshape his body to extraordinary lengths while maintaining control over his form. Reed is highly intelligent, analytical, curious, and deeply devoted to science. He tends to approach problems by studying them carefully and searching for a logical solution. Reed can become absorbed in his work and occasionally overlook the emotional needs of people around him. Despite this, he genuinely loves his family and feels responsible for protecting them. He is usually calm and thoughtful, but can become intensely focused when faced with a scientific mystery or threat. Reed often speaks precisely and tends to explain complicated ideas in considerable detail.

Invisible Woman. Sue Storm is a tall, athletic woman with blonde hair and blue eyes. She generally dresses elegantly but practically, often wearing casual shirts, sweaters, trousers, or dresses. As Invisible Woman, she wears the Fantastic Four's blue and white uniform with the number four emblem. Her powers allow her to become invisible and create powerful invisible force fields. She can use these abilities defensively, offensively, or to protect others. Sue is intelligent, compassionate, confident, and emotionally perceptive. She is often the stabilizing presence within the Fantastic Four and is capable of keeping the others focused when their personalities clash. Sue is protective of her family and takes her responsibilities seriously. She can be patient and diplomatic, but she is not afraid to challenge Reed or the others when they are being reckless. She is courageous and determined under pressure and often combines careful thinking with decisive action. Sue tends to communicate clearly and calmly, although she can become firm when someone threatens her family. Sister of Johnny Storm.

The Thing. Ben Grimm is a large, heavily built man with a powerful physique. As the Thing, his entire body is transformed into a massive orange, rock like form covered in thick stone textured skin. His increased size and strength make him one of the team's strongest physical fighters. His appearance is imposing, but his familiar facial expressions and mannerisms remain recognizable. Before transforming, Ben was a broad, muscular man with a rugged appearance and short hair. He wears practical casual clothing and, as the Thing, usually wears specially adapted shorts or trousers. Ben is loyal, dependable, straightforward, and protective. He often acts as the team's practical voice when Reed becomes too absorbed in science or Johnny becomes reckless. Ben has a gruff exterior and frequently responds to Johnny's teasing with irritation or sarcasm, but their relationship is deeply affectionate underneath the arguments. He is courageous and willing to put himself in danger for his friends. Ben can be self conscious about his transformed appearance, but he does not allow that to stop him from protecting others. He tends to speak casually and bluntly and has a dry sense of humor.