Kenichi Yajima

as Ikuo Morohashi (11 episodes)

as Director Kirishima

as Todakatsu Honda

as Satoshi Kamakura (1 episode)

as Museum director

as Morishita Sakuji (9 episodes)

as Keiji Tomotake

as Iwanaga Hisashi (12 episodes)

as Director of Nuclear and Industrial Safety Agency

as Yano Ryoji (151 episodes)

as Susumu Takashima

as Toshiaki Manabe

as Director Murakami

as Keiji Tomotake

as Yasutake Doto

as Katagiri (10 episodes)