The Boy Detectives Club – The Enemy Is an Atomic Submarine
1h 1m·Mystery
Directed by Eijirō Wakabayashi
Ninth and final film in the Boy Detectives Club series. Features Tatsuo Umemiya's film debut.
| Actor | Role |
|---|---|
 Tatsuo UmemiyaKogoro Akechi | Kogoro Akechi |
| HHiroko MineMariko | Mariko |
 Tomoko MatsushimaTomoko | Tomoko |
 Kenjiro UemuraThe Fiend with Twenty Faces | The Fiend with Twenty Faces |
 Akiko KazamiLady Kobayashi | Lady Kobayashi |
 Takashi KandaNot listed | Not listed |
| SSoratobi SasukeNot listed | Not listed |
 Jun UsamiDoctor Kobayashi | Doctor Kobayashi |