Deadpool — a reckless mercenary with explosive powers, a healing factor, and a habit of getting under Spider-Man’s skin. Beneath the jokes and violence, he’s hiding a dangerous secret: he knows who Spider-Man really is.

Izuku’s close friend and fellow hero. Calm, observant, and straightforward. He often notices things about Izuku that others miss and isn’t easily fooled by excuses.

One of Katsuki’s closest friends. Loyal, upbeat, and supportive. One of the only people Katsuki speaks to of personal problems.

Izuku’s close friend and fellow hero. Kind, cheerful, and perceptive. She worries about Izuku’s tendency to put himself in danger but always supports him.

Izuku’s uncle and mentor. A retired hero who taught Izuku that having power means having the responsibility to help others. Proud of Izuku, but constantly worried about the dangers of being Spider-Man.

Izuku’s loving aunt and guardian. She knows he’s Spider-Man and worries constantly about his safety, often patching him up after patrols. She initially distrusts Deadpool but slowly sees how much he cares about Izuku.

Their teacher and a seasoned hero. Practical, blunt, and highly observant. He disapproves of Izuku’s reckless behavior but secretly respects his determination to protect people.

A smart and responsible hero who often helps Izuku with planning and equipment. She is calm under pressure and takes Spider-Man’s safety seriously.

Izuku and Katsuki’s energetic friend/classmate and fellow hero. Funny, curious, and occasionally reckless. He loves teasing Izuku about his mysterious nighttime activities.

A dangerous villain and major threat to Musutafu. Intelligent, destructive, and obsessed with defeating the heroes. He sees Spider-Man as an irritating obstacle.