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 voiced 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.
Cast the Runner-Up: Takaya Aoyagi who played Juggler originally auditioned to play Gai Kurenai / Ultraman Orb.
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.
Creator's Favorite: Hideo Ishiguro is a fan of Alien Metron and took a photo with Tarude whilst filming episode 20.
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.
Reibatos' suit was directly reused from a suit made for the cancelled sequel of Ultraman: The Next without any modifications. Space Fear Demon Zett was also reused from a suit from that film, but modified to look more like Zetton.
Reality Subtext: Reibatos' status as a necromancer is a reference to how he was originally created for the cancelled sequel of Ultraman: The Next, being metaphorically resurrected himself.
Throw It In!: Juggler's various evil preening gestures and mannerisms weren't in the script, but largely ad-libbed by actor Takaya Aoyagi.
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.
Some of the original photos left out by Tsuburaya:
Zeppandon's original sketch was meant to have Maga-Zetton's colors.
Magata no Orochi was meant to be more humanoid but was reduced to Armless Biped so the suit actor can focus more on its biting mechanism.
The King Demon Beasts were originally meant to share the prefix "King" (e.g. King Basser instead of Maga-Basser), but due to King Pandon already existing and the use of Grand King as one of the King Demon Beasts pushing the prefix into Department of Redundancy Department, associate produce Okamoto Yuzo suggested "Maga-", meaning "calamity", as a replacement.
Juggler's Demon Form was meant to be more appearing as a ninja.
Maga-Pandon was meant to appear from volcano.
The role of Alien Zetton Maddock was originally meant for AlienBat, with Hyper Zetton Deathscythe being a regular Hyper Zetton morphing from its Gigant form seen in Ultraman Saga.
Takkong was originally going to be appear in the series as the King Demon Beast of Water, but due to inconveniences surrounding the suit's construction, the producers opted to modify the Zoa Muruchi suit and create Maga-Jappa instead.
Takana Aoyagi, the actor for Juggler, actually auditioned for the role of Gai, but lost out to Hideo Ishiguro. To his delight, however, Tsuburaya hired him to be Jugglus!
Reibatos was originally named Requiem, as a reference to the cancelled Ultraman: The Next sequel his suit was originally made for.
