- Acting for Two: Takehisa Hirose voices an Alien Makindo in ep 1 and the blue Ultraman Firis on the following voice drama.
- Bad Export for You: As with Ultraman R/B, Tsuburaya choose to market the series in the mainland China and Thailand due to their large numbers of consumer there while still ignoring viewers in the Pacific area.
- This is the only mainline Ultraman show with no official english subtitles with the other shows either being on streaming services, released on Blu-ray/DVD or subbed on Tsuburaya youtube channel. Currently watching it unsubbed on Tsuburaya youtube channel or fansubs are the only options.
- The Cast Showoff: The reason why Alien Zelan Oshoro has tap-dancing as his Character Tic is because his actor, Kubota Taketo, is skilled in tap-dancing.
- Descended Creator: The Garmes-Man in Episode 25 that saved a protester from falling debris is voiced by Ryuichi Ichino, the director of the series. He mentioned in a Twitter post that this was done because they were short on voice actors.
- Milestone Celebration: It celebrated the 10th anniversary of Mega Monster Battle: Ultra Galaxy Legends and 40th anniversary of The☆Ultraman anime (animated by Sunrise).
- The Other Marty: Pirika's actress, Momoka was replaced with Ayuri Yoshinaga starting from June 7, 2019 due to scheduling conflict on Momoka's part. This unfortunately caused a lot of real life problems, and among them is the cancellation of what supposedly an annual press conference of the Ultraman show (which they usually did in the middle of June, specifically in the Tokyo Dome City's annual toy convention).
- Pop Culture Urban Legends: One prevalent rumor in the middle of the series' run is that the villain, Ultraman Tregear, who seems to have a bit of history with Taiga's father Ultraman Taro, was supposedly none other than Taro's apprentice Ultraman Mebius (!!!), disillusioned with Taro's teachings and turning to the dark side. It turns out to be a hoax from a (admittedly rather clickbait-y) YouTube video, and the theory is further disproven later in Ultra Galaxy Fight: The Absolute Conspiracy when Mebius appears alongside Tregear. Doesn't stop YouTube from making memes based on the theory though.
- Prop Recycling:
- Averted. Many fans believed at first glance that Pagos in episode 11 was a modified Kaiju suit, until Word of God surprises them with revealing that it's a newly built suit, as is the case with Neronga from Ultraman R/B.
- Woola was made by heavily modifying the Ururu suit from the 2017 Dinosaur War Izenborg special Return of Izenborg.
- Majappa was made by modifying the Maga-Jappa suit by removing the "Maga" elements.
- Averted for Night Fang and Gorothunder, as both of them were originally supposed to be modified Belial Fusion Beast suits, the former from Chimeraberus and the latter from Pedanium Zetton, but they ended up being newly-built suits instead.
- Release Date Change: Ultraman Taiga the Movie is one of many films that a certain coronavirus caused to change its release date. In this case, the film was postponed from its intended March 6th, 2020 release date before moving to August 7th of the same year.
- Role Reprise: The Alien Perolynga in both human disguise and alien form, in this series is portrayed by the same child actor that portrayed its human disguise all the way back in Ultraseven, 52 years after his role.
- Troubled Production: TWICE! In May 2019, Pirika's actress was changed midway in filming, forcing the crew to re-shoot several scenes. And in March 2020, the Ultraman Taiga movie was postponed due to the 2020 global coronavirus pandemic.
- What Could Have Been: "The Flying Saucer is not Coming" was meant to be a direct sequel to "The Boy who Cried Flying Saucer" with the original actors reprising their roles, focusing on Saburo over 50 years after his encounter with Alien Perolynga. However, Saburo's actor passed away before the series started production, and as such the script was altered to its present form.
Trivia / Ultraman Taiga