* ActingForTwo:
** Creator/KanetoShiozawa voices Kairi and Vega.
** Creator/MegumiOgata voices Sharon and Nanase in ''[=EX2=]''.
** Creator/TomomichiNishimura voices M. Bison and Akuma [[VideoGame/StreetFighterAlpha again]].
** Creator/WataruTakagi as both Zangief (another ''Alpha'' [[RoleReprise reprise]]) and Doctrine Dark.
** Osamu Hosoi voices both Allen and Garuda.
* BadExportForYou: With the exception of ''[=EX3=]'', all the (text-only) endings in the overseas versions were removed completely and replaced with [[AWinnerIsYou a generic congratulatory message]]. The Platform/PlayStation version of the original game kept the FMV endings, at least.
* TheOtherDarrin: Creator/MikiIto took over for Creator/MegumiOgata as the voice of Sharon in ''[=EX2=] Plus'' and ''[=EX3=]''.
* WorkingTitle: ''Street Fighter Gaiden'', [[GaidenGame fittingly enough]].
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