Channel Hop: The anime originally aired on Tokyo MX for the first two seasons, then moved to TBS Televisionnote as well as its affiliates such as MBS for the final season.
Cross-Regional Voice Acting: Voice actors from both the Dallas-Fort Worth Metroplex and the Greater Houston areas were used for the third season's English dub.
Chapters 75, 76, and 77 are unusual in that they're produced by Rie Takahashi (Takagi) and Yūki Kaji (Nishikata).
In the English dubs:
The first season was directed by Jeremy Inman, who was one of the additional voices.
Besides directing the third season, John Swasey voices Shibasaki.
In Season 2:
Both the Latin American and European Spanish dubs were, respectively, directed by Nishikata's voice actors, Eduardo Garza and Angel de Gracia.
In the Italian dub, Daniele Raffaeli is one of the additional voices as well as the ADR director.
No Dub for You: Of all seasons, only Season 2 got a dub in many languages aside English. This is because of all of the companies that licensed the series overseas (Season 1 was streamed globally by Crunchyroll, Season 2 by Netflix, and Season 3 by HIDIVE), the only one that was willing to dub it internationally was Netflix. When Sentai Filmworks announced the worldwide acquisition of Season 3, this received a backlash outside of English-speaking countries not only because they lacked interest in dubbing it internationally, but also because HIDIVE had already shut down before in various South America countries, making that season not available in any platform there.
None of the spin-offs have been officially licensed.
The 2018 OVA has never been released outside of Japan.
In Latin America, as with any anime film released exclusively in cinemas by Cinepolis, the film is not available in Ecuador, Bolivia, Nicaragua, Paraguay, Uruguay, Dominican Republic and Venezuela because the company doesn't offer services in those countries.
The first season was dubbed by Funimation, while Netflix's release of the second season featured an all-new Los Angeles-based voice cast. For example, Takagi, voiced by Sarah Wiedenheft in Season 1, is now voiced by Kayli Mills.
Though Sentai Filmworks' dub of the third season retained most of the Funimation voice cast, some of the other characters were recast with Houston-based actors. For example, Scott Gibbs and Kira Vincent-Davis replaced Johnny Yong Bosch and Abby Trott as Hamaguchi and Hojo, respectively. Bryson Baugus also voiced Nishikata in episode 6 as well as the final three episodes when Aaron Dismuke wasn't available.