Philosophy of a Knife
The true history of Japanese Unit 731, from its beginnings in the 1930s to its demise in 1945, and the subsequent trials in Khabarovsk, USSR, of many of the Japanese doctors from Unit 731. The facts are told, and previously unknown evidence is revealed by an eyewitness to these events, former doctor and military translator, Anatoly Protasov.
Tomoya Okamoto
The Officer #2
Elena Probatova
The Favorite Girl
Anatoly Protasov
Himself
Tetsuro Sakagami
The Officer #1
Artem Seleznyov
The Frostbite Experiment Man
Victor Silkin
The Old Surgeon
Dmitriy Skripnik
The Captured Airplane Pilot
Alyona Strebkova
The Dental Torture Girl
Anna Subbotina
The Insect Experiment Girl
Stephen Tipton
Historical Commentary (voice)
Irina Zenkina
The Syphilis Experiment Girl
Yukari Fujimoto
The Female Nurse #1
Manoush
The Female Nurse #1 (voice)
Yumiko Fujiwara
The Female Nurse #2
Masaki Kitagava
The Female Nurse #3
Reiko Niakawa
The Female Nurse #4
Irina Nikitina
The Pregnant Girl