Mega Ambler is a white Cardbot with vibrant green and red accents throughout his body. He has a light-blue left eye and a yellow scope in place of his right eye, which enables him to analyze and assess subjects with remarkable precision. Each side of his head bears a green medical cross emblem, as a protective flap extends from the left side. His vehicle form is an ambulance.

Blue Cop is a blue Cardbot based on a police officer with a detachable police hat that bears the insignia of the Star Guardians, a bullet symbol with a flap extension on each side, light-blue eyes, a magenta visor, a white and blue chest, white lower torso, upper arms, upper legs, and shins, blue forearms with a white/gold exterior, black hands. His vehicle form a police car.

Phoenix Fire is a red Cardbot inspired by the traditional uniform of a Japanese fire brigade. He features light-blue eyes and a head designed after a combination of a Kajikabuto helmet and a Sashiko firefighting hood, with a flame emblem displayed on each side. His vehicle form being a fire engine with an extended deck gun on top.

Jun has fair skin, barely visible freckles, unkempt blue hair and azure blue eyes, and wears his Metal Breath on his left arm.

Theo is an average tall boy with fair skin, shaggy ginger hair, blue eyes and wears glasses. His initial attire consisted of a bright blue shirt under a red flannel sweater, a rocket ship pin, dark blue pants rolled up, and green shoes.

Anna is an average height girl with fair skin, pink hair and cyan eyes. Her initial attire consisted of a pink dress shirt, bowtie and skirt, a headband, white knee high socks and pink heels.

Crest is a tall boy with fair skin, turquoise hair and amber eyes. Wearing a black shirt worn under a gray jacket and yellow tie along with dark blue pants.

He has an immature personality akin to that of a mischievous child. Shadow X is a violet Cardbot designed after the attire of a Japanese shinobi with a white forehead protector sporting a red "X", a shinobi mask-shaped head with a red shuriken symbol on each side, green eyes, white plating on the chest, forearms, and knees. His vehicle form being a VTOL-designed jet — aka helicopter.