Ken Mitsuishi
actor
- Gender: Male
- Birthday: 1961-09-26 ( 63 years old )
- Place of Birth: Yahata, Fukuoka, Japan
- Also Known As: 光石研
- IMDB:nm0594073
Ken Mitsuishi (光石 研 Mitsuishi Ken, born 26 September 1961) is a Japanese actor. He has appeared in films such as Chaos and Tokyo Playboy Club.