Kyoko Aoyama

Chisako Hosokawa (art student)

Machiko Kitagawa

Yoshiko Hosokawa (Chisako's elder sister)

Sachiko Murase

Shizu Ube (Saiki's aunt)

Shin Tokudaiji

Hachiro (portrait artist)

Eitarō Ozawa

Tatsunari Ube (Saiki's uncle & professor)

Fuyuki Murakami

Magazine journalist A

Seijirô Onda

Matsushima, a private detective

Ren Yamamoto

Suzuki, a student

Yoshiko Miyata

Miss Saeko

Kumeko Otowa

Keiichirō Katsumoto

Doctor

Bunta Sugawara

Nakagawa, a student

Wataru Ōmae

Student B