Pierre Ken, born April 10, 1967, in Tokyo, Japan, and raised in Saitama Prefecture, is a prominent Japanese pornographic actor known by nicknames Pii-chan and Piiken-san. Standing at 170 cm tall, he debuted in the adult video industry in 1992, choosing his stage name due to a resemblance to musician Pierre Taki of Denki Groove. Initially aspiring to mainstream acting but struggling with line memorization, Ken excels in ad-libbing during scenes and is particularly noted for his roles in rape-themed works. By 2008, after 16 years in AV, he released a DVD titled 'Sex Techniques Taught by Pierre Ken.'
He regards Miku Ohashi as his best co-star and is a fervent beer lover, exclusively drinking it at izakaya. Ken married former porn star Arisa Matsumoto in June 2008; they divorced in March 2015. His media appearances include streams on GIRL'S CH in 2015, highlighting his enduring presence in Japan's AV scene.