The mysterious Ultraman, Tregear, has suddenly appeared in Ayaka City. Tregear asks what one would do to make their dreams come true, prompting Katsumi to search for his own dream. As a monster appears for the first time in a year, Ultraman Blu and Ultraman Rosso are joined by Ultraman Geed to face off against this new threat. Walking towards their dream with the heart of the Minato family in hand, Ultraman Gruebe is born.
平田雄也
as Katsumi Minato / Ultraman Rosso
Ryosuke Koike
as Isami Minato / Ultraman Blu
Arisa Sonohara
as Asahi Minato / Ultrawoman Grigio
濱田龍臣
as Riku Asakura / Ultraman Geed
内田雄馬
as Ultraman Tregear (voice)
眞鍋かをり
as Mio Minato
山崎銀之丞
as Ushio Minato
潘めぐみ
as Pega (voice)
湯浅かえで
as D.R.L.N. (voice)
西井幸人
as Yukio Toi
木下彩音
as Saki Mitsurugi
須藤叶希
as Yuha Ninomiya
