Tohl Narita: “As we succeeded in having two men included in Dodongo, this is a design to make them line side by side this time. Naturally, it took the form to cover the two people. The face came from a bat.”
Pester was played by the same combination of Teruo Aragaki and Yukihiro Kiyono as Dodongo, and they had to go through fierce filming experiences with a lot of fire and water used while, in the Dodongo episode, Bin Furuya suffered from lack of air when acting Ultraman at the bottom of the lowered stage set.
According to Furuya, fire and water were most fearful things in filming, and they seem to have had an extremely hard time in the filming of this Pester episode so that it went so far as to make even the two robust kaiju actors say they had thought they would die in water and flames and that it was unbelievable to have made it out in one piece.
Presumably to hide the shape explicitly telling us the costume has two men inside otherwise, Pester had a lot of “water scenes” and it soon died in flames. Incidentally, using such an enormous amount of fire on a stage set is impossible today as it is banned under the fire laws.
Tetsuo Yamamura says the costume was rather thin with the acting in water in mind just like Bemlar and that the brick-like objects covering the back were made from urethane thinly coated with latex.
I find it very much attractive that its back side was devised to look totally different from the front side. I also like the abrupt and quirky concept of putting a bat and starfish together while I think it is very Narita that such a mixture didn’t make it look ugly, creepy or gaudy.
There is an explanation that the bat head was to have a function of thrusting out forward from where it was usually positioned while the idea was finally rejected, and the side view of the design with the “neck” drawn by Narita might prove that.