Takao Yuki, the police detective
Kyûichi Ishii, the murderer
Yuji Shimooka, the police detective
Sadako Yokokawa
Mrs. Shimooka
Mr. Yokokawa
Mr. Yamada, principal offender
Mr. Takakura
Proprietress of the Hotel Hizen-ya
Yumiko Takakura
Mrs. Takakura
Acting
Saga Police Detective
Taxi driver
Policeman
Postman
Takakura's younger sister
Yokokawa's son
Yu Tachibana's daughter
