Mayonaka no tantei Nightwalker Yami wo kuru mono (1998– ) Online
With Shido and Yayoi on the tail of a night breed causing car accidents, young Riho decides to investigate on her own - which has disastrous results, and ends up with her discovering Shido's secret.
| Episode credited cast: | |||
 | Takumi Yamazaki | - | Detective Shido Tatsuhiko (voice) |
 | Maaya Sakamoto | - | Riho Yamazaki (voice) |
 | Emi Shinohara | - | Yayoi Matsunaga (voice) |
 | Richard Cansino | - | Detective Shido Tatsuhiko (voice) (as Vincent Hatcher) |
 | Mari Devon | - | Yayoi Matsunaga (voice) (as Jane Alan) |
 | Dorothy Elias-Fahn | - | Riho Yamazaki (voice) |
 | Sandy Fox | - | Guni (voice) |
 | Lex Lang | - | Cain (voice) |
| Rest of cast listed alphabetically: | |||
 | Ryoichi Hino | - | Man (voice) |
| Daiki Nakamura | - | Police Inspector (voice) |
 | Derek Stephen Prince | - | Breed / Student B (voice) (as David Umansky) |
| Debbie Rothstein | - | Additional Voices (voice) |
 | Terrence Stone | - | Student A (voice) |
| Hidetaka Takeda | - | Police Officer (voice) |
 | Hideyuki Tanaka | - | Cain (voice) |