| Episode cast overview, first billed only: |
 | Naoki Hosaka | - | Kazuhiko Amamiya / Yôsuke Kobayashi / Shinji Nishizono |
| Tomoko Nakajima | - | Machi Isono |
 | Ren Osugi | - | Tooru Sasayama (as Ren Oosugi) |
| Sadaharu Shiota | - | Masaki Manabe (as Sadaharu Shioda) |
| Yoshinari Anan | - | Kikuo Toguchi |
| Rieko Miura | - | Chizuko Honda / Chizuko Kobayashi |
| Lily | - | Yôko Yamamoto |
 | Nae | - | Tomoyo Tanabe (as Nae Yuuki) |
| Satoshi Matsuda | - | Tatsuya Ueno (as Tomonori Masuda) |
| Fujiko | - | Mami Sasayama / Tooru's wife |
| Saki Ohara | - | (as Saki Oohara) |
| Hiroto Horibe | | |
 | Chiaki Kuriyama | | |
| Shun Satô | - | Saku Ooe |
| Shun Ichijô | - | Hisashi Shimazu |
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