| SShinji YamadaTomoyuki Saiki (college student) | Tomoyuki Saiki (college student) |
 Kyoko AoyamaChisako Hosokawa (art student) | Chisako Hosokawa (art student) |
 Machiko KitagawaYoshiko Hosokawa (Chisako's elder sister) | Yoshiko Hosokawa (Chisako's elder sister) |
| KKyoko MoriMisao Hayashi (Tomoyuki's fiancée) | Misao Hayashi (Tomoyuki's fiancée) |
 Sachiko MuraseShizu Ube (Saiki's aunt) | Shizu Ube (Saiki's aunt) |
 Shin TokudaijiHachiro (portrait artist) | Hachiro (portrait artist) |
 Eitarō OzawaTatsunari Ube (Saiki's uncle & professor) | Tatsunari Ube (Saiki's uncle & professor) |
 Fuyuki MurakamiMagazine journalist A | Magazine journalist A |
 Seijirô OndaMatsushima, a private detective | Matsushima, a private detective |
| AAkira SeraApartment resident | Apartment resident |
 Ren YamamotoSuzuki, a student | Suzuki, a student |
| IIchirō ChibaNot listed | Not listed |
 Yoshiko MiyataMiss Saeko | Miss Saeko |
 Yaeko IzumoNot listed | Not listed |
 Kumeko OtowaNot listed | Not listed |
 Ichirō ShimizuNot listed | Not listed |
 Keiichirō KatsumotoDoctor | Doctor |
| KKenzo EchigoMiyoshi, a student | Miyoshi, a student |
 Bunta SugawaraNakagawa, a student | Nakagawa, a student |
 Wataru ŌmaeStudent B | Student B |
| YYōichirō KitagawaStudent A | Student A |
| HHiroshi IkaidaLaborer B | Laborer B |
| YYoko MariNot listed | Not listed |