Zett is a hot-blooded hero who greatly looked up to Ultraman Zero, who became his mentor. Although Zero recognizes his talent and potential, he says that in his current state Zett is only "half or maybe one-third" of a fully fledged hero. Tough and athletic, Zett always operates at full power. Zett also has a humorous side, as he is unused to Earth's culture and sometimes uses words incorrectly. While Zett is inexperienced and still developing, he's also a passionate hero who loves peace and justice.
- Height: TBA
- Weight: TBA
- Color Timer: Zett has a unique Z-shaped Color Timer.
- Eyes: Zett's eyes are unique among Ultras so far in that they have a crystal-like texture. What this means at this point is unknown.
- Ultra Beam: An attack fired from his hands in a "+" position.
- Energy Kick: Zett charges energy into his foot and kicks the enemy.
- The surface of Zett's Color Timer is engraved with a pattern of letter Zs.