He is most famous for playing villains and appeared in many jidaigeki and detective television dramas as a guest.
[1][2][3] He was a member of Yukio Mishima's Roman Gekijo Theatre Company.
[1] Kawai voice type is baritone as a voice actor, he has been active since the early days of ateleco, dubbing James Dean and Marlon Brando in western movies, and playing orthodox roles that are the opposite of the villain image shown in period dramas.
In private, he was a very friendly and calm person, not to be seen in Edo period dramas (children who were going to walk in the street shouted "He's a bad officer!"
Kawai himself said, "Even if the children didn't know my name, they just looked at my face and said, 'He's a bad officer in a Edo period drama!'"