A 6th grader in the same class as Guest and the pilot of Drive Head 01 Cyclone Interceptor. He tries his best not to get caught as a Drive Head driver, often using the excuse of going to the bathroom to deploy immediately when an emergency arises. His Walker Vehicle, Cyclone Interceptor, can perform a Synchro Fusion with the support vehicle Blitz Jet Fighter. Once fused, it gains flight capabilities, can fire a Hyper Shotgun, and becomes Cyclone Interceptor Jet Striker, significantly increasing its speed.

A 6th grader in the same class as Guest and the pilot of Drive Head 02 Brave Backdraft, who transferred to Gou's school. Despite his image color, he is a cool guy and popular in school due to his handsome looks. However, he is still an elementary student at heart, showing a comedic side such as getting annoyed when Gou accidentally 'steals' a limited-edition ice cream. His Walker Vehicle, Brave Backdraft, can perform a Synchro Fusion with the support vehicle Fire Truck. This fusion increases the volume and power of its fire-extinguishing shells, making it even more effective against fires.

A 6th grader in the same class as Guest and the pilot of Drive Head 03 White Crystal Hope. He has a twin sister, Lee Myeongha (of the same age). Like his sister, he is bright and energetic. While he doesn't have a dedicated Synchro Fusion support vehicle, he is theoretically capable of fusing with other Synchro units.

A 6th grader in the same class as Guest and the pilot of Drive Head 04 White Pearl Hope. She is the twin sister of Lee Jinha. She is bright and cheerful. She doesn't have romantic feelings for Guest but likes them as a friend. Her Walker Vehicle, White Pearl Hope, can perform a Synchro Fusion with the support vehicle Armored Impeller to become White Armored Impeller. It can cut through steel with blades mounted on its hands and fire syringe-like projectiles, making rescue operations much easier.

A 6th grader in the same class as Guest and a friend of Gou. She is also the object of Gou's unrequited crush, and she seems to like him back. She is a massive fan of the Interceptor. She is unaware that Cha Gou is actually a Drive Head pilot.

The Technical Director of Team Drive Head and Gou's father.

The Commander of Team Drive Head and Maeng Yongho's maternal uncle.

Painted in gold and black, this is Guest's Drive Head. While it is the same size as other Drive Heads, it possesses its own consciousness and has four times the output. It is very loyal to Guest and is capable of flight. It only speaks when absolutely necessary, expressing most of its emotions through actions (e.g., sitting dejectedly when it wants to deploy but can't). It can operate autonomously without a pilot. Normally, it spends time with Guest except during maintenance. In a crisis, it can reach eight times its standard output, utilizing its maximum power. Synchro Fusion is not possible. Note: Guest's Link Level is significantly higher than that of other pilots.

An android of unknown potential referred to as the 'Evil AI.' It hijacked the body of TF-3, an android originally built for planetary exploration. It evolves through self-learning and absorbs negative human emotions. It once threatened the system by hacking through Team Drive Head's main server, which was protected by rigorous security and firewalls, demonstrating terrifying potential.

A member of the Mobile Strike Police and the driver of Drive Head S.I.B Max. He is called a driver rather than a pilot because S.I.B Max is operated manually rather than through a Drive Gear. He is in his late 20s. His Walker Vehicle, S.I.B Max, was the first unit ever produced. It possesses output equal to or greater than C.I.B Mega Max, which is twice the output of standard Drive Heads.