Gender: Male. He has messy blue hair and blue eyes. He wears a gold guard on his right arm and layers a white and blue jacket over a gray hooded jacket.

Vehicle Mode: Fire engine (water ladder truck). Partnered with Soleil. Weapon Card: Roar Gauntlet, a red lion-shaped gauntlet. Wild Cardbot

Blue Cop's superior. The main body is a ladder fire truck, while other parts—a dump truck, helicopter, and excavator—combine to form Flame Nova. Partnered with Jun. Weapon Card: Blaze Armor. Metal Cardbot

Vehicle Mode: Helicopter. Partnered with Soleil. Weapon Card: Buzz Sting, a gauntlet with a large bee-sting spear attached to the left arm. Speech Trait: Adds "-ssu" to the beginning or end of sentences. Wild Cardbot

Vehicle Mode: Tank. Partnered with Jun. Weapon Card: Growl Cannon Axe, a pair of hand-axe weapons equipped in both hands. They feature tiger faces and can be mounted on the back backpack to be used as cannons. Speech Trait: Makes "grrr" and "roar" sounds at the beginning or end of sentences. Wild Cardbot

Vehicle Mode: Yellow sports car. Partnered with Soleil. Weapon Card: Sonic Runner, equipment attached to the legs that amplifies leg strength for faster running. The only character who speaks in a dialect. He is incredibly fast. Wild Cardbot

Chief of the Monohorn tribe. Vehicle Mode: Articulated dump truck. Partnered with Soleil. The truck is the main body, and it combines with a breaker and a crane. Weapon Card: Terra Crusher, a massive sledgehammer. Wild Cardbot

Captain of the Speranza. Partnered with Jun and Soleil, though he technically has no single partner. Vehicle Mode: Conventional (bonnet-type) tractor truck + oil tanker trailer. He also possesses an Organizer, which can open card-shaped portals. Weapon Card: Rex Arm, a large gauntlet for the left arm shaped like a Tyrannosaurus head. Used to grab opponents or fire flames. Metal Cardbot

Gender: Female. She has mint-colored short hair and wears an orange vest.

The villain, known as the "Approaching Calamity." Vehicle Mode: High-speed train. He possesses immense power. Car 2 transforms into Behemoth Form, Car 3 into Leviathan Form, and Car 4 into Wyvern Form. These forms lack their own consciousness and only move when controlled by Tyrant Zero; they are merely shells. He can combine his main body (Car 1) with the other cars to form a God of Destruction mode. Formerly a Metal Cardbot, now a Wild Cardbot.