Not the first time Hiroki Yasumoto voices an Alien Mefilas (the first is in Ultra Zero Fight). And in said series, he has already familiar having teammates consist of Koichi Toshima (Alien Metron Tarude / Alien Groza Glocken) and Tetsuo Kishi (Alien Nackle Nagus / Alien Hipporito Jathar).
Reibatos' voice actor from Ultra Fight Orb is Hidenari Ugaki, who previously voice Mold Spectre in Ultraman X. In fact, the first being that Reibatos revived from his debut appearance is none other than Juda Spectre, Mold's younger brother.
Colbert Bump: Orb's Thunder Breastar serves this to of all people, Ultraman Belial, at least according to the wiki fandom. Some even went further to claim that Belial is an anti-hero and all the evil part is actually the influence of Rayblood.
Creator Backlash: Writer Yuichi Abe expresses his dissatisfaction of Maga-Pandon for being weaker, claiming that all it can do is firing flame attacks and withstanding Orb's Sperion Ray for a long time before trembling into explosion.
Development Hell: As of now, Chapters 8 and 10 of Ultraman Orb Chronicle is yet to have its own story. Chapters 2-5 at the very least had their own form of anthologies.
Fake Nationality: Natasha Romanova is played by J-idol Vlada of Hajirai Rescue JPN, although the makeup job done on her makes this harder to tell. Then again, Vlada is an actual Russian, and there is no mention of the country in the series.
The King Demon Beasts are born from Maga-Orochi when it releases spirits which reacted with Earth's elements. The reason why the past Ultras can't destroy them is that they are literal personifications of Earth elements and destroying them may cause the Earth to be destroyed, considering said planet at that time was almost in ruins.
Natasha is the daughter of a Rupashika royalist, having fled to Rusalka due to the tension of her original country's war. Oh and she has been taken care of Gai for 1 month after his injury caused the Laser-Guided Amnesia.
Some of Gai's current accessories are keepsakes of his past allies: his necklace was from a Tagalong Kid named Shorty, who died after disarming Juggler's bomb while his jacket is from an American agent named Mike Scudder, who he met in 1950's.
Takanori Tsujimoto believes that Juggler's ability to grow monstrous (which resulted from absorbing Earth's inner darkness) is a result of him absorbing Orochi's dark power.