Na Yong-chan: Curious and righteous. 12-year-old boy. Owned Tinysaurs: Tricera, Pachycephalo, Ptera, Parasa, Pentacera, Carno, Suchus, Mammoth, Dimetrodon, Lambeo, Tupandac, Shasta. Alcyon: Na Yong-chan's partner Capturecar. Warm-hearted. Hong Yu-mi: Na Yong-chan's childhood friend. Kind. 12-year-old girl. An Gyeong-jun: Na Yong-chan's childhood friend. Intelligent. 12-year-old boy. Kang U-ram: Arrogant and bulldozer-like personality. Often bickers with Na Yong-chan. 12-year-old boy. Owned Tinysaurs: Tyranno, Brachio, Ammonite, Suchomi, Plesio. Teton: Arrogant like a bulldozer. Kang U-ram's Capturecar. Jang Se-mo: A friend who always hangs around Kang U-ram. Characterized by repeating U-ram's words. Frail. 12-year-old boy. Louis Kim: Arrogant son of a wealthy family. Very lonely because his parents are abroad for work. 12-year-old boy. Owned Tinysaurs: Ophthalmo, Armadillo, Ourano, Giganoto, Krono. No. 1 & No. 2: Louis Kim's bodyguards. They follow Louis Kim's orders faithfully. Arren: Louis Kim's Capturecar, acts like a butler. Cho Sin-bi: A beautiful dinosaur magician. Skilled in magic and receives many confessions. 14-year-old girl. Owned Tinysaurs: Stego, Nycus, Monolopho, Pachyrhino, Micro, Mosa. Devonne: Cho Sin-bi's Capturecar, acts like a manager. Jay: A university scientist who wants to rule the world with dinosaurs. Enemy to Na Yong-chan, Kang U-ram, Louis Kim, Cho Sin-bi, Hong Yu-mi, An Gyeong-jun, and Su-o. 20-year-old male. Owned Tinysaurs: Dilopho, Ankylo, Salta, Diplo, Hylaeo, Dunkleo, Psittaco, Spino, Anomalo, Chintao. Was an enemy of Tirara but became an ally. Hardin: Jay's Capturecar, acts like an advisor. Follows Jay's orders faithfully. Tirara: A girl from the Dinosauroid race. Was friends with Su-o but came to hate him due to a misunderstanding. 12-year-old girl. Owned Tinysaurs: Quetzalcoatl, Therizino, Allo, Archelon, Acrocantho, Cairus. Calovis: Tirara's Capturecar and a father figure to her. Arrogant. Su-o: A boy from the Dinosauroid race. Was friends with Tirara, but their relationship soured due to a misunderstanding. He tries to clear the misunderstanding. Calm, but surprisingly oblivious and clumsy. Owned Tinysaurs: Delta, Einio, Dimor, Sauro, Niger. Has a crush on Cho Sin-bi. Steno: Su-o's Capturecar and a grandfather figure to him. Wise.