- Yumi Kameyama was the first known female kaiju suit actor in a film, followed by Rie Ota as Baragon in Godzilla, Mothra and King Ghidorah: Giant Monsters All-Out Attack. Jennie Kaplan has previously portrayed Pigmon in an episode of Ultraman Powered.
- According to special effects director Shinji Higuchi, a woman was chosen to portray Super Gyaos because "the shape of a woman's body is different from that of a man's" and "since virtually all of the people who work in the special effects field are men, I thought that I could make it a little easier for women to enter the field by having one play Gyaos."
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