12 years old. The son of Dr. Spike Taylor, head of the D-Lab (Paleontology Research Institute). He is bright, cheerful, and loves dinosaurs. He has a straight-laced personality and hates bullies or liars. Though a bit clumsy, he is the leader and the man of action for the D-Kids. Other traits: He is a picky eater and terrible at math (his highest score was 45). Partner: Chomp (Lightning element), Species: Triceratops. (2nd image is Chibi form, 3rd image is True form)

12 years old. He became close friends with Max while staying at his house in Japan, following Dr. Taylor's colleague, Dr. Owen. He serves as the brains of the D-Kids with his cool-headed judgment. Partner: Ace (Wind element), Species: Carnotaurus. (2nd image is Chibi form, 3rd image is True form)

12 years old. A girl who loves dinosaurs. She is bright, positive, and bold. Partner: Paris (Grass element), Species: Parasaurolophus. (2nd image is Chibi form, 3rd image is True form)

Everyone calls him Doctor, or sometimes Dr. Taylor. Max's father and the head of the D-Lab. He is a dinosaur expert who constantly tries to follow the D-Kids to see dinosaurs but always fails. While he is a comedic, clumsy character, he is second to none when it comes to knowledge about dinosaurs.

Zoe's older sister. A great beauty who becomes even more stunning when she takes off her glasses. She works as Dr. Taylor's assistant and teleports the children to locations where dinosaurs appear.

Japanese name: Dr. Sonoida. Everyone calls him Doctor. The leader of the Alpha Gang and a comedic villain. Despite his age, his personality is the height of pettiness. He plans to collect dinosaur cards to build his own dinosaur kingdom and become the Dinosaur King.

A member of the Alpha Gang who acts as the leader of the trio including Zander and Ed. Her specialties are giving noogies and getting angry. She absolutely hates being called an "old lady" (if she hears it, she gets furious regardless of whether it's a stranger or a teammate, and gains super strength enough to lift heavy boulders). Though she acts childish, she occasionally shows a mature side. As a gag character, she is always suffering. She sometimes calls Dr. Z "old man." Partner: Terry (Fire element), Species: Tyrannosaurus. (2nd image is Chibi form, 3rd image is True form)

A member of the Alpha Gang. He is friends with Ed and is constantly scolded by Ursula. He is very tall. He has a crush on Reese. He is technically the brain of the Alpha Gang, but his clumsiness is his downfall. Partner: Spiny (Water element), Species: Spinosaurus. (2nd image is Chibi form, 3rd image is True form)

A member of the Alpha Gang. He is the shortest and has a round, balloon-like body. He is a terrible swimmer and sinks like a stone, but his dream was once to have adventures on the sea. He is fundamentally kind and reliable. Partner: Tank (Earth element), Species: Saichania. (2nd image is Chibi form, 3rd image is True form)