- Master Alude - The strongest practitioner and the Grand Master of the Cosmo Beast Style. He is the master of the ultimate Juggernaut Charging Buffalo Fist.
- Instructor Phoros - An instructor of the Cosmo Beast Style, he is extremely serious and respects the Cosmos Beast Style more than anyone. A Master of the Lightning White Tiger Fist, he wields the power of thunder, and strikes with a sharp blow of lightning.
- Tubahn - A Master of the Flaming Red Dragon Fist, he wields the power of fire. He is adept at accurately striking an opponent's weak spot, and is a free-spirited fighter who dislikes conforming to rules and conventions.
- Spica - She is a Cosmo Beast Fighter who cares a lot about Regulos. A Master of the Rapid Frozen Panther Fist, she wields the power of frost. She throws freezing strikes faster than the eye can see.
- Albeo - He is a Cosmo Beast Fighter, and a senior disciple to Regulos. A Master of the Leaping Spirit Crane Fist, he wields the power of wind. He can move gracefully in the air and slice his opponents.
- Pharood - He is a Cosmo Beast Fighter, and another senior disciple to Regulos. A master of Phantom Water Snake Fist, he wields the power of water. He strikes water currents into opponents with grace.
The team behind the previous three Ultra Galaxy Fight series namely, director Koichi Sakamoto (Ultraman Geed, Kamen Rider Fourze) and writer Junichiro Ashiki (Ultra Zero Fight) returns to work on this spin-off series. Ultraman Regulos is set to premiere soon on Tsuburaya Imagination in Japan, and in Ultraman Connection worldwide.