A timid and ordinary elementary school boy. He is a character of tragic fate who suffers through unfair incidents simply because he shares the same name as the main villain, 'Gong Dae-wang.' The T-Busters call him 'Dae-jang' (Leader) but aren't particularly rude to him. The T-Busters live in his house.

A man who used to be an apartment security guard but is actually a brilliant scientist villain with a PhD. He has a somewhat eccentric and comical personality. (Currently living in an abandoned amusement park, acting like a king in front of the X-Busters.)

The leader of the T-Busters, male (in figure form). A hot-blooded character whose catchphrase is "Burning up!" but in reality, he's a blustering leader who often faces insubordination, styled like a cute neighborhood middle-aged man.

A member of the T-Busters and a female sniper (in figure form). She is the de facto sub-leader and the only rational person on the team, possessing a thorough and rigid personality.

A member of the T-Busters and a male communications officer (in figure form). He handles communications using a dedicated stand and is a bit soft-hearted.

A member of the T-Busters and a male medic (in figure form). He plays the role of an engineer (mad scientist). He is a maniac who wants to disassemble and fix anything. He is characterized by a grotesque face resembling Frankenstein's monster.

A member of the T-Busters, a male heavy weapons specialist and armory (in figure form). A combat robot boasting a massive build and incredible strength; when he tenses his stomach, various weapons pop out. He is always hungry, kind, and blunt.

The leader of the X-Busters, male (in figure form). He is in charge of operational command and is a professional who completes missions quickly and accurately as long as the reward is guaranteed.

The training officer of the X-Busters, female (in figure form). She always has a blush on her face and, unlike the other diligent members, has a bit of a lazy personality. She is always looking for her 'prince.'

The cook of the X-Busters, male (in figure form). Contrary to his evil appearance, he is kind and takes on the hard work. Steam comes out of his head, allowing him to heat food like a rice cooker.