Among the students of the 'Kihachi family,' which used very limited, almost only two, fixed assistant directors, those who became film directors are limited to almost only two, Susumu TAKEBAYASHI and Michio YAMAMOTO, and they supported Okamoto in more than a dozen films, respectively.
「喜八一家」は助監督も固定されがちであったこともあり、門下生監督はそれぞれ十数本をサポートした竹林進、山本迪夫の二人にほぼ絞られる。