Laconic Literature Main Trivia YMMV
Actor-Inspired Element: The most common portrayal of Kato (tall, thin, long face, prominent chin) is largely based on the looks of his first live-action actor, Kyusaku Shimada.
Celebrity Voice Actor: Kyusaku Shimada was also Kato's voice actor in Doomed Megalopolis. It was his first time voice acting, too.
Fountain of Expies: Yasnuori Kato received many, up to and including M. Bison. A more blatant expy can be found in Raidou Kuzunoha.
Franchise Killer: The cinematic franchise was dented by the critical and commercial disappointment of Tokyo: The Last War. The franchise sort of bounced back after the sales of the OVA Doomed Megalopolis, but it was destroyed again by the incredible backlash against the Direct-to-Video spinoff film Teito Monogatari Gaiden (which actually tried to outdo the anime in terms of nastiness).
Hey, It's That Voice!: Cam Clarke is Narutaki and Barbara Goodson is Keiko in the English version of Doomed Megalopolis.
Name's the Same: Kato should never be confused with The Green Hornet's Battle Butler Kato, even if they wear similar hats. Kato is also in no way connected to model trains.
No Export for You:
Despite both the OVA and first movie getting English releases, the books have not due to their heavy reliance on Japanese historical and cultural references.
Tokyo: The Last War and Teito Monogatari Gaiden were also not released in the west.
Troubled Production: Numerous accidents plagued the set of the first film.
What Could Have Been: The original script for Tokyo: The Last War contained more subplots and was more faithful to the novel, however these were all cut due to budgetary issues.