Dieter Laser is a German actor.
He played the character Josef Heiter, the main antagonist of The Human Centipede (First Sequence). He also be starred as a separate character called Bill Boss in The Human Centipede 3 (Final Sequence).
During the pre-production of The Human Centipede 3 (Final Sequence) Laser had pulled out, allegedly due to not liking his character and not relating to him, which apparently caused Tom Six's production company to sue him. However, in 2013, they had settled their differences and Laser returned to working with Six on the film, which was released in 2015.