! General Trivia
* In RealLife, Kohji Moritsugu (Dan) and Yuriko Hishimi (Anne) are both restauranteurs.

! Trope Trivia
* AbsenteeActor: Yuriko Hishimi does not appear in "Fly To The Mountain Of Evil" or "The Man from V3".
* ActingForTwo:
** Those twin alien girls from "The Secret of the Lake"? In human form, they were played by one actress. "They" appear together at the end of the episode.
** Kohji Moritsugu plays both Jiro Satsuma and Dan in "Underground: Go! Go! Go!".
* BadExportForYou: It's nice to have it on R1, but the set itself lies and says its mono, when it's really a 5.1 remix with new sound effects, and the video is taken from basically ripping the R2s.
* BannedEpisode
** "From Another Planet With Love" was banned in the 1970s after a support group for atomic bomb survivors complained about comparisons between bomb victims and Spehl Aliens.[[note]]That's literal, by the way - the episode was actually rerun several times without incident or comment, but a third party published a set of cards that happened to describe Alien Spell as "an A-Bomb Survivor" (which isn't inaccurate, but can really only invite bad-taste comparisons). Tsuburaya banned the episode outright as a result of the controversy, as well as all elements from it.[[/note]]
** In 2011, "Super Weapon R-1" was banned in Japan after the Fukushima Daiichi disaster.
* CompletelyDifferentTitle: In Mexico, it was known as ''El Agente Ultrasiete''.
* CreatorBacklash: Despite its iconic nature, director Akio Jissoji always thought the coffee table scene between Dan and Alien Metron in "The Targeted Town" was silly, even when he filmed it.
* FollowTheLeader: The Ultra Hawks used by the team were inspired by ''Series/{{Thunderbirds}}'', as Creator/EijiTsuburaya greatly admired the miniatures work on Creator/GerryAnderson's show.
* IronyAsSheIsCast: Given that Bin Furuya was a judo expert and he played the HenshinHero in the [[{{Series/Ultraman}} previous show]], it's surprising he played the NonActionGuy in this show.
* MissingEpisode: Ultra Seven is this and then some.
** Tsuburaya has a self-imposed ban on Episode 12. Strangely enough, the banned Episode 12 was dubbed and broadcast in the States[[note]]Alien Spell is made out to be a vampire of sorts[[/note]], and can even be found online.
** Out of the Hawaiian Dub, only episodes 21, 22, and 35 survived.
** In the Cinar/Turner dub, all episodes were dubbed, but between 1985 and 1994, Turner's own video copies of episodes 5, 6, and 7 disappeared.
** Nowadays, "Super Weapon R-1" is banned due to parallels to the Fukushima-Daiichi disaster.
** There exists an episode that has '''NEVER''' been aired called "Revenge of 300 Years". It was intended to be the twenty-third episode of the show and would have featured an alien called Alien Talk. It only became known in the 90s when a film recreating the production of ''Ultra Seven'' discovered it. [[http://ultra.wikia.com/wiki/Revenge_of_300_Years Read about it here.]]
* PropRecycling: Alien Quraso's costume is a [[Series/UltraQ Kemur-Man]] costume with a new head. The Science Patrol's Mars-133 was cut down and turned into the Ultra Garrison's "Paralyzer" stun-gun.
** Gabura was made from the Goldon suit from ''Series/{{Ultraman}}''.
** The Dinosaur-Tank suit was remade into Rigger.
** The shadow illusion created by Alien Shaplay was made from the suits of Aliens Godola, Pegassa and Quraso combined.
* WhatCouldHaveBeen
** Was originally supposed to be a more hard sci-fi show similar to ''Series/LostInSpace'' called ''The Ultra Garrison'', but someone urged a rewrite due to being too similar to rival show ''Captain Ultra'', and the show was turned into ''[[WorkingTitle Ultra Eye]]'', where Dan was supposed to transform into Redman, who was also [[SpinOffspring Ultraman Junior]]. The Capsule Monsters were supposed to be [[Series/UltraQ Peguila]], [[Series/{{Ultraman}} Antlar, and Red King]], but Tsuburaya wanted to do more with their budget, so the capsule monsters became new monsters. ''Ultra Eye'' was reworked into ''Ultra Seven'' and the rest is history.
** When [[Creator/{{TBS}} Turner Program Services]] was shown the finished dub, they found it to be subpar, and after failing to sell it to another network or syndication, the episodes were locked away until 1994- when they realized they never got run, they were given to Creator/{{TNT}} to run as part of their ''Toons Til Noon'' and ''[=MonsterVision=]'' blocks (for the former, the eps were edited to be suitable for kids and families; for the latter, the episodes ran uncut).
** Among the bizarre rejected ideas, producer Masami Sueyasu proposed the series become a Japanese analog to ''Literature/AlicesAdventuresInWonderland'' combined with ''Film/TheRedBalloon'', writer Akio Jissoji proposed a series revolving around a time-traveling family and their everyday lives, Hajime Tsuburaya proposed a new season of Ultraman that basically pandered to the sponsors (think MerchandiseDriven to the Nth degree like today's Franchise/KamenRider), and Eiji proposed a cross between ''Series/{{Thunderbirds}}'' and ''Series/LostInSpace''.
** The ''Ultra Garrison'' proposal would have revolved around a team of astronauts and RobotBuddy "John", who lived in a space station called Mother and were Earth's first line of defense against alien invaders. The concept came off as too derisive, and the executives ordered Tsuburaya to rewrite it.
** In addition to Ultraman Junior, there would be both good and bad monsters from Earth and space respectively, and the good Earth monsters would fight on humanity's side. ''Series/UltramanGaia'' saw this idea come to fruition.
** In one draft, Dan would have been half-R-alien (possessing ESP), half-human.
** One of Seven's preliminary costume designs looked similar to Series/UltramanMebius.
** Most of those designs lacked an Eye Slugger. Many designs did use elaborate headdresses and chestpieces though.
** Ultraseven was originally going to blue, but due to the blue-screen matte process, it was changed to red.
** The series was originally intended to take place in its own continuity, where the events of ''[[Series/UltraQ Ultra Q]]'' and ''Series/{{Ultraman}}'' never took place. Traces of this can be seen in the final product, as there is no mention whatsoever of Ultraman nor his adventures with the Science Patrol, Seven himself exhibits many differences when compared to other Ultras (though Series/UltramanTaro and Franchise/UltramanZero, the latter being Seven's son, resemble him more closely.), and his superior looks exactly like him rather than Zoffy. The Heisei ''Ultra Seven'' series and ''Series/UltraSevenX'' ran with this idea.
** Alien Guts was originally meant to have a bulbous exposed brain in order to emphasize his intelligence and potent mental powers, but Eiji Tsuburaya rejected it for being too grotesque.
** "The Wandering Planet" was initially written as an episode of ''Series/{{Ultraman}}'', while Rigger's role was for [[Series/UltraQ Pagos]]. Agira was a last-minute addition, as the role was initially meant for Windam, but ExecutiveMeddling demanded a new monster.
** Miclas was originally meant to be killed in the Alien Guts two-parter [[spoiler:rather than Windam]].
** A capsule monster based on UsefulNotes/{{Hachiko}} existed in early concepts.
* WorkingTitle: ''Ultra Eye''
* YouLookFamiliar: Robot Commander was played by Dr. Niwa[[note]]Alien Prote in disguise[[/note]]'s actor.
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