Gregory Horror Show is a 3D CGI animated television series created by Naomi Iwata and televised by the Asahi National Broadcasting Co.
| Title | Air Date | Duration | ||
|---|---|---|---|---|
| Season 1 | Episode 1 | Gregory | 1999-10-02 | 3 min |
| Season 1 | Episode 2 | The Room | 1999-10-09 | 3 min |
| Season 1 | Episode 3 | Neko Zombie | 1999-10-16 | 3 min |
| Season 1 | Episode 4 | Lost Doll | 1999-10-23 | 3 min |
| Season 1 | Episode 5 | Hell's Chef | 1999-10-30 | 3 min |
| Season 1 | Episode 6 | Catherine | 1999-11-06 | 3 min |
| Season 1 | Episode 7 | Mummy Dog & Mummy Papa | 1999-11-13 | 3 min |
| Season 1 | Episode 8 | Judgement Boy | 1999-11-20 | 3 min |
| Season 1 | Episode 9 | Cactus Gunman | 1999-11-27 | 3 min |
| Season 1 | Episode 10 | TV Fish | 1999-12-04 | 3 min |
| Season 1 | Episode 11 | Public Phone | 1999-12-11 | 3 min |
| Season 1 | Episode 12 | Room 207 | 1999-12-18 | 3 min |
| Season 1 | Episode 13 | Clock Master | 2000-01-08 | 3 min |
| Season 1 | Episode 14 | Frog Fortune-Teller | 2000-01-15 | 3 min |
| Season 1 | Episode 15 | Roulette Boy | 2000-01-22 | 3 min |
| Season 1 | Episode 16 | Speed Mouse | 2000-01-29 | 3 min |
| Season 1 | Episode 17 | Mirror Man | 2000-02-05 | 3 min |
| Season 1 | Episode 18 | Kinko and Inko | 2000-02-12 | 3 min |
| Season 1 | Episode 19 | Gregory Mama | 2000-02-19 | 3 min |
| Season 1 | Episode 20 | Angel/Devil Dog | 2000-02-26 | 3 min |
| Season 1 | Episode 21 | Dead Body | 2000-03-04 | 3 min |
| Season 1 | Episode 22 | Heaven or Hell | 2000-03-11 | 3 min |
| Season 1 | Episode 23 | Judgement Boy Gold | 2000-03-18 | 3 min |
| Season 1 | Episode 24 | Death | 2000-03-25 | 3 min |
| Season 1 | Episode 25 | Haniwa Salaryman | 2000-03-31 | 3 min |
| Season 2 | Episode 1 | Episode 1 | 2000-04-01 | 3 min |
| Season 2 | Episode 2 | Episode 2 | 2000-04-08 | 3 min |
| Season 2 | Episode 3 | Episode 3 | 2000-04-15 | 3 min |
| Season 2 | Episode 4 | Episode 4 | 2000-04-23 | 3 min |
| Season 2 | Episode 5 | Episode 5 | 2000-04-29 | 3 min |
| Season 2 | Episode 6 | Episode 6 | 2000-05-06 | 3 min |
| Season 2 | Episode 7 | Episode 7 | 2000-05-14 | 3 min |
| Season 2 | Episode 8 | Episode 8 | 2000-05-21 | 3 min |
| Season 2 | Episode 9 | Episode 9 | 2000-05-27 | 3 min |
| Season 2 | Episode 10 | Episode 10 | 2000-06-03 | 3 min |
| Season 2 | Episode 11 | Episode 11 | 2000-06-10 | 3 min |
| Season 2 | Episode 12 | Episode 12 | 2000-06-24 | 3 min |
| Season 2 | Episode 13 | Episode 13 | 2000-07-01 | 3 min |
| Season 2 | Episode 14 | Episode 14 | 2000-07-08 | 3 min |
| Season 2 | Episode 15 | Episode 15 | 2000-07-16 | 3 min |
| Season 2 | Episode 16 | Episode 16 | 2000-07-29 | 3 min |
| Season 2 | Episode 17 | Episode 17 | 2000-08-06 | 3 min |
| Season 2 | Episode 18 | Episode 18 | 2000-08-13 | 3 min |
| Season 2 | Episode 19 | Episode 19 | 2000-08-20 | 3 min |
| Season 2 | Episode 20 | Episode 20 | 2000-08-26 | 3 min |
| Season 2 | Episode 21 | Episode 21 | 2000-09-02 | 3 min |
| Season 2 | Episode 22 | Episode 22 | 2000-09-10 | 3 min |
| Season 2 | Episode 23 | Episode 23 | 2000-09-17 | 3 min |
| Season 2 | Episode 24 | Episode 24 | 2000-09-23 | 3 min |
| Season 2 | Episode 25 | Episode 25 | 2000-10-01 | 3 min |
| Season 3 | Episode 1 | My Sweet Home | 2000-10-07 | 3 min |
| Season 3 | Episode 2 | Sasayakana Bouken | 2000-10-14 | 3 min |
| Season 3 | Episode 3 | Tabi no Otomo wa Peanuts | 2000-10-21 | 3 min |
| Season 3 | Episode 4 | Shinshi wa Pork ga Osuki? | 2000-10-28 | 3 min |
| Season 3 | Episode 5 | Shiawase to wa Kizukanai Koto | 2000-11-04 | 3 min |
| Season 3 | Episode 6 | Kuse wa Naoranai | 2000-11-12 | 3 min |
| Season 3 | Episode 7 | Ochimush no Kisetsu | 2000-11-19 | 3 min |
| Season 3 | Episode 8 | Sagashimono wa Nandesuka? | 2000-11-25 | 3 min |
| Season 3 | Episode 9 | Yume no Aru Oshigoto | 2000-12-02 | 3 min |
| Season 3 | Episode 10 | Mousou no Tenmatsu | 2000-12-09 | 3 min |
| Season 3 | Episode 11 | Ai to Nikushimi no Kyoukaisen | 2000-12-16 | 3 min |
| Season 3 | Episode 12 | Yume de Aimashou | 2000-12-24 | 3 min |
| Season 3 | Episode 13 | Judgement Days | 2000-12-31 | 3 min |
| Season 3 | Episode 14 | Trauma kara Mirai made | 2001-01-07 | 3 min |
| Season 3 | Episode 15 | Kanashiki Yuujou | 2001-01-14 | 3 min |
| Season 3 | Episode 16 | Noroi no Shoumi Kigen | 2001-01-21 | 3 min |
| Season 3 | Episode 17 | Chiisana Touhikou | 2001-01-27 | 3 min |
| Season 3 | Episode 18 | Senritsu no Catastrophe | 2001-02-03 | 3 min |
| Season 3 | Episode 19 | Jidai no Kizuato | 2001-02-10 | 3 min |
| Season 3 | Episode 20 | Sasurau Koto no Imi | 2001-02-18 | 3 min |
| Season 3 | Episode 21 | Infra no Kouzai | 2001-02-24 | 3 min |
| Season 3 | Episode 22 | Meikai e no Joutaijou | 2001-03-03 | 3 min |
| Season 3 | Episode 23 | Toumei na Tameiki | 2001-03-10 | 3 min |
| Season 3 | Episode 24 | Nure Nezumi no Gogo | 2001-03-18 | 3 min |
| Season 3 | Episode 25 | Subete wa Nagare no Mama ni... | 2001-03-25 | 3 min |
| Season 3 | Episode 26 | Eien no Tawamure | 2001-03-31 | 3 min |
| Season 4 | Episode 1 | Case 1: The Sigh of an Angel | 2001-04-07 | 3 min |
| Season 4 | Episode 2 | Case 2: Swept Away... | 2001-04-14 | 3 min |
| Season 4 | Episode 3 | Case 3: A Maiden's Hangnail | 2001-04-21 | 3 min |
| Season 4 | Episode 4 | Case 4: A Value of a Shine | 2001-04-29 | 3 min |
| Season 4 | Episode 5 | Case 5: Goodbye My Love | 2001-05-05 | 3 min |
| Season 4 | Episode 6 | Case 6: The Tale of a Traitor | 2001-05-12 | 3 min |
| Season 4 | Episode 7 | Case 7: Future Tense | 2001-05-20 | 3 min |
| Season 4 | Episode 8 | Case 8: The Shape of Memories | 2001-05-26 | 3 min |
| Season 4 | Episode 9 | Case 9: Retribution for a Secret | 2001-06-02 | 3 min |
| Season 4 | Episode 10 | Case 10: The Tequila Pledge | 2001-06-09 | 3 min |
| Season 4 | Episode 11 | Case 11: A Whirlwind Romance | 2001-06-23 | 3 min |
| Season 4 | Episode 12 | Case 12: The Stardust Future | 2001-06-30 | 3 min |
| Directing | Kazumi Minagawa | Director |
| Writing | Naomi Iwata | Writer |
