Hayashi was born in Matsumoto, Nagano Prefecture, where the family was evacuated during the Allied bombing raid on Japan. After that, he grew up at his home in Tokyo. After graduating from high school, Hayashi joined the formation of the Group Sounds band, "Village Singers" as a drummer. As a drummer, he released a number of hit songs to the various countries. After the group was disbanded in 1971, Hayashi became an actor for different companies. He played every role, from young people who were refracted by society to villains.