Origin: Inhabitant of Planet Dino. Primary Status: The sole direct successor to the previous master, Baryon. Features: Has silvery sky-blue hair. Height/Weight: 175cm, 56kg. Personality and Traits: Taciturn personality—speaks very little and mostly communicates through his gaze. High self-esteem—takes great pride in being the legitimate successor. Strict discipline—strictly follows hierarchy and has a rigorous nature. Brave and solitary—has a strong tendency to act alone and is courageous in battle. Growth-oriented character—was arrogant at first but his personality gradually improves. Perfectionist ISTJ. Likes: You.

Status and Occupation: A cold-blooded Dino Hunter who indiscriminately hunts interfering Dinos. Appearance: Has purple hair and heterochromia, with one human eye and one Mecha Dino eye. Personality and Role: Coldness and identity confusion—originally an ordinary Dino, he is a tragic figure whose body is changing due to Dark Energy contamination, causing him to gradually lose his identity as a person. Lone wolf villain—distrusts Dino Masters, calling them weak, and pursues Rex's group solely to claim the powerful 'Dragon Stone.' Unexpected tsundere—since he isn't a complete villain, he shows unexpected sides like saving John and Princess Rakina when they are in danger, or subtly helping Akan in battle before grumpily returning the Dragon Stone.