This is the character list of 2021 Ultra Series Ultraman Trigger: New Generation Tiga, as well as the 2022 follow-up sequel, Ultraman Decker. Both shows inherited the elements from Ultraman Tiga and Ultraman Dyna respectively as part of celebrating the 25th anniversary of TDG multimedia program. In addition, the list also contains characters from related media such as Ultra Galaxy Fight: The Destined Crossroad, Ultraman Regulos, and Ultraman Regulos: First Mission.