Pilot of Athlon Tobot | A 5th-grade male student at Bitsol Elementary School. He is the pilot of [Athlon Tornado • Athlon Vulcan • Athlon Rocky]. When the Robot Dodgeball incident occurs, he requests help from Baek Hae-il and decides to face the villain Guest in Robot Dodgeball together. His Athlon pilot outfit is a red dodgeball player uniform. He belongs to the Athlon Robot Dodgeball team with Baek Hae-il.

A transforming robot modeled after a supercar. His specialties are Photon Acceleration, which accelerates rapidly, and Photon Storm, which instantaneously blocks the opponent's movement.

A transforming robot modeled after a mass-produced race car. He has a cheerful and free-spirited personality. Obsessed with hip-hop, he often speaks in rap. His specialties are Parkour techniques for traversing the city by scaling buildings freely and Flame Tank, which strikes opponents head-on while emitting flames.

A transforming robot modeled after a compact car. He provides appropriate advice when needed. His specialty is Bubble Sphere, which has a protective function.

A transforming robot in the form of a police car. In dodgeball matches, he uses techniques that curve the ball's trajectory using strong spin. Representative techniques include Left Turn Shoot, Right Turn Shoot, and U-Turn Shoot. In battle, he defeats villains using Tornado Kick.

A transforming robot in the form of a fire truck. He has the personality of a serious firefighter. In dodgeball matches, he uses techniques utilizing high water pressure. Representative techniques include Aqua Cannon Ball and Water Fall. During fires, he uses Aqua Jet to suppress flames.

A transforming robot in the form of an excavator. He has a playful and curious personality. In Robot Dodgeball tournaments, he uses techniques utilizing an excavator shovel. Representative techniques include Shovel Catch and Shovel Smash. In battle, he defeats villains using Shovel Punch.

Pilot of Athlon Tobot | A 5th-grade male student at Bitsol Elementary School. He is the pilot of [Athlon Alpha • Athlon Beta • Athlon Theta]. After the racing incident ended, he was living a normal life until a new villain appeared in Robot Dodgeball. He decides to fight once again as an [Athlon Pilot] to protect Robot Dodgeball. His Athlon pilot outfit is a blue racer suit. He is determined to personally stop his best friend Guest and bring them back.

The partner robot piloted by Guest. He uses Robot Mode during Robot Dodgeball matches, and in battle, he fights in Leviathan (half-man, half-beast) form before transforming into a robot. He is male and speaks human language very well. He can speak human language even in Leviathan form and is amphibious.