 CAMEO(Ai Maeda): in the scene when Mothra appears in Tokyo, we can  see the twins sisters, who are in fact Ai Maeda, who plays Ayana in  Gamera 3: revenge of iris (also directed by Shusuke Kaneko). Her  sister, Aki Maeda is also in Gamera 3, she plays Ayana in the  opening scene, which takes places in 1995, shes credited as "young  Ayana".