For Latin American viewers, this series was the third Studio TRIGGER's work legally translated to Spanish (the other two were Kill la Kill and Little Witch Academia, both being available in Netflix), the second one being dubbed to Spanish (the other one was Little Witch Academia) and the first one dubbed to Mexican Spanish (the already mentioned LWA was dubbed in Chile)
A curious fact for Portuguese viewers is that both this title and Little Witch Academia were dubbed in the same region but by very different companies in both licensing and dubbing medium. Then, BNA: Brand New Animal was dubbed by Netflix in the same studio which dubbed Darling in the Franxx, and finally, Promare was dubbed in Portuguese by another licensor, but in the same studio which dubbed Little Witch Academia. This became a somewhat very interesting fact in Brazilian media as anime in general is usually dubbed in São Paulo instead of those titles, dubbed in Rio de Janeiro. Well, until the announcement of SSSS.GRIDMAN dubbed in Portuguese for television broadcast in 2021, recorded in São Paulo instead. However, such dub has been never aired because of irresponsibility reasons that made the channel shut down.
After the third episode, the anime was announced to be no longer airing in China. The whole fiasco is a bit more complicated however: A certain Chinese anime commentator (allegedly called LEXBURNER) directly compared this anime with Violet Evergarden (both aired in the same season) in a single commentary video and, with the Chinese fandom already divided over which is the better anime of the season, a massiveFlame War broke out over the Chinese internet (some elements from the anime only fueled it even more). This resulted in a self-proclaimed fan of the commentator reporting DARLING to the Chinese officials for its unsuitable contents, leading iQiYi (which had exclusive rights to air this anime proper in Mainland China) to pull the plug under pressure (Slow Start was also dragged down unfortunately). Eventually things calmed down, with iQiYi resumed airing the series (with usual censorships in place), and at least part the China anime fandom agreed that they went a bit overboard.
This is one of the anime series that got the banhammer on Russia after the government's media watchdog Roskomnadzor decided to ban Crunchyroll after they discovered they didn't rate their series properly.
The Other Darrin: Daiki Hamano replaces Yuichiro Umehara as Goro's voice actor from Episode 23 onwards after the latter was hospitalized due to acute disseminated encephalomyelitis.
Troubled Production: In an appearance at Anime Expo 2018, TRIGGER's panel revealed that the show's pre-production was difficult and that the team had "been through a lot". There has also been substantial speculation that TRIGGER did not get along with Cloverworks, and the former had to face having storyboards rejected by the producer and director. TRIGGER eventually pulled out of the series entirely after the release of Episode 14, leading many to speculate that the second half was negatively affected because of TRIGGER's departure. Moreover, the showrunners had to recast Goro from episode 23 onwards after the original voice actor Yuichiro Umehara was hospitalized due to acute disseminated encephalomyelitis. Judging from Franxx being completely absent on TRIGGER's website, TRIGGER likely called No True Scotsman on the series as a result of the adverse relationship they had with Cloverworks.note For the record, the series does appear on Cloverworks' site.