The Viper Brothers: The Blackmailers

Bunta Sugawara

Masa

Tamio Kawachi

Katsu

Tsunehiko Watase

Mao

Seizaburō Kawazu

President Ri

Yuriko Mishima

Rie Saotome

Rena Ichinose

Akira Shioji

Akira Ōizumi

Kin Sugai

Shōtarō Hayashi

Michimaro Otabe

Katsumasa Uchida

Touyou Trading employee

Yoshinobu Hirose

Takashi Noguchi

Takuzō Kawatani

Ayako Hidaka

Mineko Maruhira

Yûsuke Tsukasa

Yoshiki Yamada

Hideo Shimada

Yasushi Ōshiro

Kenji Imai

Fumio Watanabe

Hiroki Matsukata

Yoko Horikoshi

Reika Ri

Miwako Onaya

Hachirō Oka

Toyoko Takechi