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 are not rude to him. The T-Busters live at his house.

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

The male leader of the T-Busters (in figure form). He is a hot-blooded character whose catchphrase is "I'm burning up!" but in reality, he is a bluffing, neighborhood-uncle-style leader who is often subjected to mutiny by his subordinates.

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

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

A male member of the T-Busters, heavy weapons specialist, and walking armory (in figure form). He boasts a massive build and incredible strength; his gimmick is that various weapons pop out of his stomach when he flexes. He is always hungry, kind-hearted, and blunt.

The male leader of the X-Busters (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.

A female trainer for the X-Busters (in figure form). She always has a blush on her face and, unlike the other diligent members, has a bit of a lazy streak. She is constantly searching for her 'Prince Charming.'

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