According to the DVD commentary by directore Eli Roth he strongly considered casting Rutger Hauer as the Dutch Businessman.

Sting was briefly considered for the part of the Dutch Businessman.

According to the DVD exec producers commentary, Eli Roth considered Quentin Tarantino for the role of the American Client but ultimately decided having that Takashi Miike and Tarantino visit the torture house would be pushing their luck.